13231450415531 has 2 divisors, whose sum is σ = 13231450415532. Its totient is φ = 13231450415530.

The previous prime is 13231450415473. The next prime is 13231450415537. The reversal of 13231450415531 is 13551405413231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231450415531 is a prime.

It is a super-2 number, since 2×13231450415531² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13231450415537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615725207765 + 6615725207766.

It is an arithmetic number, because the mean of its divisors is an integer number (6615725207766).

Almost surely, 2^{13231450415531} is an apocalyptic number.

13231450415531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231450415531 is an equidigital number, since it uses as much as digits as its factorization.

13231450415531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 13231450415531 its reverse (13551405413231), we get a palindrome (26782855828762).

The spelling of 13231450415531 in words is "thirteen trillion, two hundred thirty-one billion, four hundred fifty million, four hundred fifteen thousand, five hundred thirty-one".