23203113121 has 8 divisors (see below), whose sum is σ = 24005338920. Its totient is φ = 22401028608.

The previous prime is 23203113113. The next prime is 23203113127. The reversal of 23203113121 is 12131130232.

It can be written as a sum of positive squares in 4 ways, for example, as 16073168400 + 7129944721 = 126780^2 + 84439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23203113121 - 2³ = 23203113113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23203113127) 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, 382915 + ... + 439351.

It is an arithmetic number, because the mean of its divisors is an integer number (3000667365).

Almost surely, 2^23203113121 is an apocalyptic number.

It is an amenable number.

23203113121 is a deficient number, since it is larger than the sum of its proper divisors (802225799).

23203113121 is a wasteful number, since it uses less digits than its factorization.

23203113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70643.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23203113121 its reverse (12131130232), we get a palindrome (35334243353).

The spelling of 23203113121 in words is "twenty-three billion, two hundred three million, one hundred thirteen thousand, one hundred twenty-one".