13023131013 has 6 divisors (see below), whose sum is σ = 18811189254. Its totient is φ = 8682087336.

The previous prime is 13023130987. The next prime is 13023131021. The reversal of 13023131013 is 31013132031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9995600484 + 3027530529 = 99978^2 + 55023^2 .

It is not a de Polignac number, because 13023131013 - 2¹³ = 13023122821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023131083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723507270 + ... + 723507287.

It is an arithmetic number, because the mean of its divisors is an integer number (3135198209).

Almost surely, 2^13023131013 is an apocalyptic number.

It is an amenable number.

13023131013 is a deficient number, since it is larger than the sum of its proper divisors (5788058241).

13023131013 is a wasteful number, since it uses less digits than its factorization.

13023131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447014563 (or 1447014560 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13023131013 its reverse (31013132031), we get a palindrome (44036263044).

The spelling of 13023131013 in words is "thirteen billion, twenty-three million, one hundred thirty-one thousand, thirteen".