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131201424313 = 1027312771481
BaseRepresentation
bin111101000110000110…
…1101101101110111001
3110112122122121220221121
41322030031231232321
54122200031034223
6140134553505241
712323202464101
oct1721415555671
9415578556847
10131201424313
1150707868a93
1221517112221
13c4aba773ab
1464c8c8a201
15362d58115d
hex1e8c36dbb9

131201424313 has 4 divisors (see below), whose sum is σ = 131214206068. Its totient is φ = 131188642560.

The previous prime is 131201424307. The next prime is 131201424359. The reversal of 131201424313 is 313424102131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56326952889 + 74874471424 = 237333^2 + 273632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131201424313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201424373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6375468 + ... + 6396013.

It is an arithmetic number, because the mean of its divisors is an integer number (32803551517).

Almost surely, 2131201424313 is an apocalyptic number.

It is an amenable number.

131201424313 is a deficient number, since it is larger than the sum of its proper divisors (12781755).

131201424313 is a wasteful number, since it uses less digits than its factorization.

131201424313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781754.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131201424313 its reverse (313424102131), we get a palindrome (444625526444).

The spelling of 131201424313 in words is "one hundred thirty-one billion, two hundred one million, four hundred twenty-four thousand, three hundred thirteen".

Divisors: 1 10273 12771481 131201424313