15919661103113 has 2 divisors, whose sum is σ = 15919661103114. Its totient is φ = 15919661103112.

The previous prime is 15919661103011. The next prime is 15919661103133. The reversal of 15919661103113 is 31130116691951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12759241152064 + 3160419951049 = 3572008^2 + 1777757^2 .

It is a cyclic number.

It is not a de Polignac number, because 15919661103113 - 2¹⁴ = 15919661086729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15919661103133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7959830551556 + 7959830551557.

It is an arithmetic number, because the mean of its divisors is an integer number (7959830551557).

Almost surely, 2^{15919661103113} is an apocalyptic number.

It is an amenable number.

15919661103113 is a deficient number, since it is larger than the sum of its proper divisors (1).

15919661103113 is an equidigital number, since it uses as much as digits as its factorization.

15919661103113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131220, while the sum is 47.

The spelling of 15919661103113 in words is "fifteen trillion, nine hundred nineteen billion, six hundred sixty-one million, one hundred three thousand, one hundred thirteen".