13002023231 has 4 divisors (see below), whose sum is σ = 13038856512. Its totient is φ = 12965189952.

The previous prime is 13002023227. The next prime is 13002023233. The reversal of 13002023231 is 13232020031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13002023231 - 2² = 13002023227 is a prime.

It is a super-2 number, since 2×13002023231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13002023233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18416111 + ... + 18416816.

It is an arithmetic number, because the mean of its divisors is an integer number (3259714128).

Almost surely, 2^13002023231 is an apocalyptic number.

13002023231 is a deficient number, since it is larger than the sum of its proper divisors (36833281).

13002023231 is an equidigital number, since it uses as much as digits as its factorization.

13002023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36833280.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13002023231 its reverse (13232020031), we get a palindrome (26234043262).

The spelling of 13002023231 in words is "thirteen billion, two million, twenty-three thousand, two hundred thirty-one".