23131121101 has 16 divisors (see below), whose sum is σ = 25500267648. Its totient is φ = 20806632000.

The previous prime is 23131121089. The next prime is 23131121147. The reversal of 23131121101 is 10112113132.

It is a happy number.

It is not a de Polignac number, because 23131121101 - 2⁷ = 23131120973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131121161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975075 + ... + 1986751.

It is an arithmetic number, because the mean of its divisors is an integer number (1593766728).

Almost surely, 2^23131121101 is an apocalyptic number.

It is an amenable number.

23131121101 is a deficient number, since it is larger than the sum of its proper divisors (2369146547).

23131121101 is a wasteful number, since it uses less digits than its factorization.

23131121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13572.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 23131121101 its reverse (10112113132), we get a palindrome (33243234233).

The spelling of 23131121101 in words is "twenty-three billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred one".