13032313021 has 32 divisors (see below), whose sum is σ = 16458632960. Its totient is φ = 10043357184.

The previous prime is 13032313003. The next prime is 13032313037. The reversal of 13032313021 is 12031323031.

It is not a de Polignac number, because 13032313021 - 2⁵ = 13032312989 is a prime.

It is a super-2 number, since 2×13032313021² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13032313021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13032313001) 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, 1455085 + ... + 1464013.

It is an arithmetic number, because the mean of its divisors is an integer number (514332280).

Almost surely, 2^13032313021 is an apocalyptic number.

It is an amenable number.

13032313021 is a deficient number, since it is larger than the sum of its proper divisors (3426319939).

13032313021 is a wasteful number, since it uses less digits than its factorization.

13032313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13032313021 its reverse (12031323031), we get a palindrome (25063636052).

The spelling of 13032313021 in words is "thirteen billion, thirty-two million, three hundred thirteen thousand, twenty-one".