23012021123 has 8 divisors (see below), whose sum is σ = 28322487648. Its totient is φ = 18207313344.

The previous prime is 23012021069. The next prime is 23012021177. The reversal of 23012021123 is 32112021032.

It is an interprime number because it is at equal distance from previous prime (23012021069) and next prime (23012021177).

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 23012021123 - 2⁶ = 23012021059 is a prime.

It is a super-2 number, since 2×23012021123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23012021183) 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, 126439586 + ... + 126439767.

It is an arithmetic number, because the mean of its divisors is an integer number (3540310956).

Almost surely, 2^23012021123 is an apocalyptic number.

23012021123 is a deficient number, since it is larger than the sum of its proper divisors (5310466525).

23012021123 is a wasteful number, since it uses less digits than its factorization.

23012021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252879373.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23012021123 its reverse (32112021032), we get a palindrome (55124042155).

Subtracting 23012021123 from its reverse (32112021032), we obtain a palindrome (9099999909).

The spelling of 23012021123 in words is "twenty-three billion, twelve million, twenty-one thousand, one hundred twenty-three".