13020032031 has 8 divisors (see below), whose sum is σ = 17654280960. Its totient is φ = 8532902232.

The previous prime is 13020031943. The next prime is 13020032041. The reversal of 13020032031 is 13023002031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13020032031 - 2²² = 13015837727 is a prime.

It is a super-2 number, since 2×13020032031² (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 13020032031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020032041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36779575 + ... + 36779928.

It is an arithmetic number, because the mean of its divisors is an integer number (2206785120).

Almost surely, 2^13020032031 is an apocalyptic number.

13020032031 is a deficient number, since it is larger than the sum of its proper divisors (4634248929).

13020032031 is an equidigital number, since it uses as much as digits as its factorization.

13020032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73559565.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13020032031 its reverse (13023002031), we get a palindrome (26043034062).

The spelling of 13020032031 in words is "thirteen billion, twenty million, thirty-two thousand, thirty-one".