23121231023 has 8 divisors (see below), whose sum is σ = 25228298880. Its totient is φ = 21015019480.

The previous prime is 23121231019. The next prime is 23121231031. The reversal of 23121231023 is 32013212132.

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 23121231023 - 2² = 23121231019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23121230986 and 23121231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121231073) 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 7 ways as a sum of consecutive naturals, for example, 156953 + ... + 266226.

It is an arithmetic number, because the mean of its divisors is an integer number (3153537360).

Almost surely, 2^23121231023 is an apocalyptic number.

23121231023 is a deficient number, since it is larger than the sum of its proper divisors (2107067857).

23121231023 is a wasteful number, since it uses less digits than its factorization.

23121231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428157.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23121231023 its reverse (32013212132), we get a palindrome (55134443155).

The spelling of 23121231023 in words is "twenty-three billion, one hundred twenty-one million, two hundred thirty-one thousand, twenty-three".