23131130302 has 16 divisors (see below), whose sum is σ = 39671146080. Its totient is φ = 9908896608.

The previous prime is 23131130299. The next prime is 23131130303. The reversal of 23131130302 is 20303113132.

It is a super-2 number, since 2×23131130302² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23131130302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131130303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337977 + ... + 400612.

It is an arithmetic number, because the mean of its divisors is an integer number (2479446630).

Almost surely, 2^23131130302 is an apocalyptic number.

23131130302 is a deficient number, since it is larger than the sum of its proper divisors (16540015778).

23131130302 is a wasteful number, since it uses less digits than its factorization.

23131130302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740835.

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

Adding to 23131130302 its reverse (20303113132), we get a palindrome (43434243434).

The spelling of 23131130302 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty thousand, three hundred two".