23021113131 has 24 divisors (see below), whose sum is σ = 33413540160. Its totient is φ = 15273273600.

The previous prime is 23021113121. The next prime is 23021113163. The reversal of 23021113131 is 13131112032.

It is not a de Polignac number, because 23021113131 - 2⁶ = 23021113067 is a prime.

It is a super-2 number, since 2×23021113131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23021113121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4398286 + ... + 4403516.

It is an arithmetic number, because the mean of its divisors is an integer number (1392230840).

Almost surely, 2^23021113131 is an apocalyptic number.

23021113131 is a deficient number, since it is larger than the sum of its proper divisors (10392427029).

23021113131 is a wasteful number, since it uses less digits than its factorization.

23021113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23021113131 its reverse (13131112032), we get a palindrome (36152225163).

It can be divided in two parts, 230211 and 13131, that added together give a palindrome (243342).

The spelling of 23021113131 in words is "twenty-three billion, twenty-one million, one hundred thirteen thousand, one hundred thirty-one".