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312031330231201 = 7242115125858269
BaseRepresentation
bin100011011110010100111010…
…0100110001110001110100001
31111220210220101220101100011221
41012330221310212032032201
5311344310131014344301
63023345114133535041
7122503343150202400
oct10674516446161641
91456726356340157
10312031330231201
1190471820303789
122abb59191a4481
131051557494aa39
14570a57b3ad637
1526119b706ada1
hex11bca7498e3a1

312031330231201 has 12 divisors (see below), whose sum is σ = 363837394826580. Its totient is φ = 266820139847520.

The previous prime is 312031330231193. The next prime is 312031330231219. The reversal of 312031330231201 is 102132033130213.

It can be written as a sum of positive squares in 2 ways, for example, as 105476515070976 + 206554815160225 = 10270176^2 + 14372015^2 .

It is not a de Polignac number, because 312031330231201 - 23 = 312031330231193 is a prime.

It is a super-2 number, since 2×3120313302312012 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7562908506 + ... + 7562949763.

It is an arithmetic number, because the mean of its divisors is an integer number (30319782902215).

Almost surely, 2312031330231201 is an apocalyptic number.

It is an amenable number.

312031330231201 is a deficient number, since it is larger than the sum of its proper divisors (51806064595379).

312031330231201 is a wasteful number, since it uses less digits than its factorization.

312031330231201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15125858704 (or 15125858697 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 312031330231201 its reverse (102132033130213), we get a palindrome (414163363361414).

The spelling of 312031330231201 in words is "three hundred twelve trillion, thirty-one billion, three hundred thirty million, two hundred thirty-one thousand, two hundred one".

Divisors: 1 7 49 421 2947 20629 15125858269 105881007883 741167055181 6367986331249 44575904318743 312031330231201