23202120131 has 4 divisors (see below), whose sum is σ = 23462818200. Its totient is φ = 22941422064.

The previous prime is 23202120119. The next prime is 23202120143. The reversal of 23202120131 is 13102120232.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23202120119) and next prime (23202120143).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23202120131 is a prime.

It is a super-2 number, since 2×23202120131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23202120181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130348901 + ... + 130349078.

It is an arithmetic number, because the mean of its divisors is an integer number (5865704550).

Almost surely, 2^23202120131 is an apocalyptic number.

23202120131 is a deficient number, since it is larger than the sum of its proper divisors (260698069).

23202120131 is an equidigital number, since it uses as much as digits as its factorization.

23202120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260698068.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23202120131 its reverse (13102120232), we get a palindrome (36304240363).

The spelling of 23202120131 in words is "twenty-three billion, two hundred two million, one hundred twenty thousand, one hundred thirty-one".