13231514419157 has 2 divisors, whose sum is σ = 13231514419158. Its totient is φ = 13231514419156.

The previous prime is 13231514419073. The next prime is 13231514419219. The reversal of 13231514419157 is 75191441513231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6635729632081 + 6595784787076 = 2575991^2 + 2568226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231514419157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231514419957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615757209578 + 6615757209579.

It is an arithmetic number, because the mean of its divisors is an integer number (6615757209579).

Almost surely, 2^{13231514419157} is an apocalyptic number.

It is an amenable number.

13231514419157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231514419157 is an equidigital number, since it uses as much as digits as its factorization.

13231514419157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 47.

The spelling of 13231514419157 in words is "thirteen trillion, two hundred thirty-one billion, five hundred fourteen million, four hundred nineteen thousand, one hundred fifty-seven".