13003023231 has 20 divisors (see below), whose sum is σ = 21190113384. Its totient is φ = 7880619600.

The previous prime is 13003023203. The next prime is 13003023259. The reversal of 13003023231 is 13232030031.

13003023231 is a `hidden beast` number, since 1 + 300 + 302 + 32 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (13003023203) and next prime (13003023259).

It is not a de Polignac number, because 13003023231 - 2⁹ = 13003022719 is a prime.

It is a super-2 number, since 2×13003023231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003023731) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7295980 + ... + 7297761.

Almost surely, 2^13003023231 is an apocalyptic number.

13003023231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13003023231 is a deficient number, since it is larger than the sum of its proper divisors (8187090153).

13003023231 is a wasteful number, since it uses less digits than its factorization.

13003023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14593764 (or 14593755 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13003023231 its reverse (13232030031), we get a palindrome (26235053262).

The spelling of 13003023231 in words is "thirteen billion, three million, twenty-three thousand, two hundred thirty-one".