13023207831 has 16 divisors (see below), whose sum is σ = 17416148960. Its totient is φ = 8656243200.

The previous prime is 13023207817. The next prime is 13023207889. The reversal of 13023207831 is 13870232031.

It is not a de Polignac number, because 13023207831 - 2⁶ = 13023207767 is a prime.

It is a super-2 number, since 2×13023207831² (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 (13023207331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1490331 + ... + 1499043.

It is an arithmetic number, because the mean of its divisors is an integer number (1088509310).

Almost surely, 2^13023207831 is an apocalyptic number.

13023207831 is a deficient number, since it is larger than the sum of its proper divisors (4392941129).

13023207831 is an equidigital number, since it uses as much as digits as its factorization.

13023207831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 13023207831 its reverse (13870232031), we get a palindrome (26893439862).

The spelling of 13023207831 in words is "thirteen billion, twenty-three million, two hundred seven thousand, eight hundred thirty-one".