15051112313197 has 2 divisors, whose sum is σ = 15051112313198. Its totient is φ = 15051112313196.

The previous prime is 15051112313191. The next prime is 15051112313219. The reversal of 15051112313197 is 79131321115051.

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., 8889825259561 + 6161287053636 = 2981581^2 + 2482194^2 .

It is a cyclic number.

It is not a de Polignac number, because 15051112313197 - 2³ = 15051112313189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15051112313191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7525556156598 + 7525556156599.

It is an arithmetic number, because the mean of its divisors is an integer number (7525556156599).

Almost surely, 2^{15051112313197} is an apocalyptic number.

It is an amenable number.

15051112313197 is a deficient number, since it is larger than the sum of its proper divisors (1).

15051112313197 is an equidigital number, since it uses as much as digits as its factorization.

15051112313197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 40.

The spelling of 15051112313197 in words is "fifteen trillion, fifty-one billion, one hundred twelve million, three hundred thirteen thousand, one hundred ninety-seven".