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231304142141 = 5319122849367
BaseRepresentation
bin1101011101101011001…
…1010001110100111101
3211010000222112212120022
43113122303101310331
512242202330022031
6254132030301525
722465634524352
oct3273263216475
9733028485508
10231304142141
118a106181556
12389b33578a5
1318a7293c6c7
14b2a3808629
15603b80a97b
hex35dacd1d3d

231304142141 has 8 divisors (see below), whose sum is σ = 236902247424. Its totient is φ = 225751736080.

The previous prime is 231304142131. The next prime is 231304142177. The reversal of 231304142141 is 141241403132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231304142141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231304142141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231304142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11414561 + ... + 11434806.

It is an arithmetic number, because the mean of its divisors is an integer number (29612780928).

Almost surely, 2231304142141 is an apocalyptic number.

It is an amenable number.

231304142141 is a deficient number, since it is larger than the sum of its proper divisors (5598105283).

231304142141 is a wasteful number, since it uses less digits than its factorization.

231304142141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22849611.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 231304142141 its reverse (141241403132), we get a palindrome (372545545273).

The spelling of 231304142141 in words is "two hundred thirty-one billion, three hundred four million, one hundred forty-two thousand, one hundred forty-one".

Divisors: 1 53 191 10123 22849367 1211016451 4364229097 231304142141