23131223122111 has 8 divisors (see below), whose sum is σ = 25318917617504. Its totient is φ = 21001867146720.

The previous prime is 23131223122099. The next prime is 23131223122123. The reversal of 23131223122111 is 11122132213132.

It is an interprime number because it is at equal distance from previous prime (23131223122099) and next prime (23131223122123).

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 23131223122111 - 2²³ = 23131214733503 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 (23131223120111) 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, 14584629171 + ... + 14584630756.

It is an arithmetic number, because the mean of its divisors is an integer number (3164864702188).

Almost surely, 2^{23131223122111} is an apocalyptic number.

23131223122111 is a deficient number, since it is larger than the sum of its proper divisors (2187694495393).

23131223122111 is a wasteful number, since it uses less digits than its factorization.

23131223122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29169260001.

The product of its digits is 864, while the sum is 25.

Adding to 23131223122111 its reverse (11122132213132), we get a palindrome (34253355335243).

The spelling of 23131223122111 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, one hundred eleven".