13021332985 has 16 divisors (see below), whose sum is σ = 16450911360. Its totient is φ = 9867052800.

The previous prime is 13021332977. The next prime is 13021332997. The reversal of 13021332985 is 58923312031.

It is not a de Polignac number, because 13021332985 - 2³ = 13021332977 is a prime.

It is a super-2 number, since 2×13021332985² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842689 + ... + 858001.

It is an arithmetic number, because the mean of its divisors is an integer number (1028181960).

Almost surely, 2^13021332985 is an apocalyptic number.

It is an amenable number.

13021332985 is a deficient number, since it is larger than the sum of its proper divisors (3429578375).

13021332985 is a wasteful number, since it uses less digits than its factorization.

13021332985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24288.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 13021332985 in words is "thirteen billion, twenty-one million, three hundred thirty-two thousand, nine hundred eighty-five".