13065602331 has 32 divisors (see below), whose sum is σ = 19051262208. Its totient is φ = 7932395520.

The previous prime is 13065602327. The next prime is 13065602401. The reversal of 13065602331 is 13320656031.

It is a happy number.

It is not a de Polignac number, because 13065602331 - 2² = 13065602327 is a prime.

It is a super-2 number, since 2×13065602331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13065602311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206811 + ... + 262491.

It is an arithmetic number, because the mean of its divisors is an integer number (595351944).

Almost surely, 2^13065602331 is an apocalyptic number.

13065602331 is a deficient number, since it is larger than the sum of its proper divisors (5985659877).

13065602331 is a wasteful number, since it uses less digits than its factorization.

13065602331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55851.

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 13065602331 in words is "thirteen billion, sixty-five million, six hundred two thousand, three hundred thirty-one".