15631104113 has 2 divisors, whose sum is σ = 15631104114. Its totient is φ = 15631104112.

The previous prime is 15631104103. The next prime is 15631104127. The reversal of 15631104113 is 31140113651.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15164198449 + 466905664 = 123143^2 + 21608^2 .

It is a cyclic number.

It is not a de Polignac number, because 15631104113 - 2⁸ = 15631103857 is a prime.

It is not a weakly prime, because it can be changed into another prime (15631104103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7815552056 + 7815552057.

It is an arithmetic number, because the mean of its divisors is an integer number (7815552057).

Almost surely, 2^15631104113 is an apocalyptic number.

It is an amenable number.

15631104113 is a deficient number, since it is larger than the sum of its proper divisors (1).

15631104113 is an equidigital number, since it uses as much as digits as its factorization.

15631104113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 15631104113 its reverse (31140113651), we get a palindrome (46771217764).

The spelling of 15631104113 in words is "fifteen billion, six hundred thirty-one million, one hundred four thousand, one hundred thirteen".