13332521231 has 2 divisors, whose sum is σ = 13332521232. Its totient is φ = 13332521230.

The previous prime is 13332521227. The next prime is 13332521233. The reversal of 13332521231 is 13212523331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13332521231 - 2² = 13332521227 is a prime.

It is a super-2 number, since 2×13332521231² (a number of 21 digits) contains 22 as substring.

Together with 13332521233, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13332521231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13332521233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6666260615 + 6666260616.

It is an arithmetic number, because the mean of its divisors is an integer number (6666260616).

Almost surely, 2^13332521231 is an apocalyptic number.

13332521231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13332521231 is an equidigital number, since it uses as much as digits as its factorization.

13332521231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The spelling of 13332521231 in words is "thirteen billion, three hundred thirty-two million, five hundred twenty-one thousand, two hundred thirty-one".