13320023131 has 12 divisors (see below), whose sum is σ = 14131649664. Its totient is φ = 12552836400.

The previous prime is 13320023111. The next prime is 13320023137. The reversal of 13320023131 is 13132002331.

It is not a de Polignac number, because 13320023131 - 2¹⁵ = 13319990363 is a prime.

It is a super-2 number, since 2×13320023131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13320023099 and 13320023108.

It is not an unprimeable number, because it can be changed into a prime (13320023137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27640 + ... + 165541.

It is an arithmetic number, because the mean of its divisors is an integer number (1177637472).

Almost surely, 2^13320023131 is an apocalyptic number.

13320023131 is a deficient number, since it is larger than the sum of its proper divisors (811626533).

13320023131 is a wasteful number, since it uses less digits than its factorization.

13320023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193410 (or 193391 counting only the distinct ones).

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

Adding to 13320023131 its reverse (13132002331), we get a palindrome (26452025462).

The spelling of 13320023131 in words is "thirteen billion, three hundred twenty million, twenty-three thousand, one hundred thirty-one".