23431111421233 has 4 divisors (see below), whose sum is σ = 23431160176128. Its totient is φ = 23431062666340.

The previous prime is 23431111421227. The next prime is 23431111421293. The reversal of 23431111421233 is 33212411113432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23431111421233 - 2³³ = 23422521486641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23431111421195 and 23431111421204.

It is not an unprimeable number, because it can be changed into a prime (23431111421293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23649313 + ... + 24620158.

It is an arithmetic number, because the mean of its divisors is an integer number (5857790044032).

Almost surely, 2^{23431111421233} is an apocalyptic number.

It is an amenable number.

23431111421233 is a deficient number, since it is larger than the sum of its proper divisors (48754895).

23431111421233 is an equidigital number, since it uses as much as digits as its factorization.

23431111421233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48754894.

The product of its digits is 10368, while the sum is 31.

Adding to 23431111421233 its reverse (33212411113432), we get a palindrome (56643522534665).

The spelling of 23431111421233 in words is "twenty-three trillion, four hundred thirty-one billion, one hundred eleven million, four hundred twenty-one thousand, two hundred thirty-three".