13020311332 has 24 divisors (see below), whose sum is σ = 26062517376. Its totient is φ = 5575441728.

The previous prime is 13020311327. The next prime is 13020311341. The reversal of 13020311332 is 23311302031.

It is a super-2 number, since 2×13020311332² (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 7 ways as a sum of consecutive naturals, for example, 161488 + ... + 228295.

It is an arithmetic number, because the mean of its divisors is an integer number (1085938224).

Almost surely, 2^13020311332 is an apocalyptic number.

It is an amenable number.

13020311332 is an abundant number, since it is smaller than the sum of its proper divisors (13042206044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13020311332 is a wasteful number, since it uses less digits than its factorization.

13020311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390987 (or 390985 counting only the distinct ones).

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

Adding to 13020311332 its reverse (23311302031), we get a palindrome (36331613363).

The spelling of 13020311332 in words is "thirteen billion, twenty million, three hundred eleven thousand, three hundred thirty-two".