23802139131 has 16 divisors (see below), whose sum is σ = 31793894400. Its totient is φ = 15839268768.

The previous prime is 23802139091. The next prime is 23802139147. The reversal of 23802139131 is 13193120832.

It is not a de Polignac number, because 23802139131 - 2⁷ = 23802139003 is a prime.

It is a super-2 number, since 2×23802139131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23802139092 and 23802139101.

It is not an unprimeable number, because it can be changed into a prime (23802139181) 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, 4676470 + ... + 4681556.

It is an arithmetic number, because the mean of its divisors is an integer number (1987118400).

Almost surely, 2^23802139131 is an apocalyptic number.

23802139131 is a deficient number, since it is larger than the sum of its proper divisors (7991755269).

23802139131 is a wasteful number, since it uses less digits than its factorization.

23802139131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618.

The product of its (nonzero) digits is 7776, while the sum is 33.

Adding to 23802139131 its reverse (13193120832), we get a palindrome (36995259963).

The spelling of 23802139131 in words is "twenty-three billion, eight hundred two million, one hundred thirty-nine thousand, one hundred thirty-one".