23021342125 has 16 divisors (see below), whose sum is σ = 28735027776. Its totient is φ = 18414258000.

The previous prime is 23021342089. The next prime is 23021342129. The reversal of 23021342125 is 52124312032.

It is a de Polignac number, because none of the positive numbers 2^k-23021342125 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23021342125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021342129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1282462 + ... + 1300288.

It is an arithmetic number, because the mean of its divisors is an integer number (1795939236).

Almost surely, 2^23021342125 is an apocalyptic number.

23021342125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23021342125 is a deficient number, since it is larger than the sum of its proper divisors (5713685651).

23021342125 is a wasteful number, since it uses less digits than its factorization.

23021342125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28173 (or 28163 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23021342125 its reverse (52124312032), we get a palindrome (75145654157).

The spelling of 23021342125 in words is "twenty-three billion, twenty-one million, three hundred forty-two thousand, one hundred twenty-five".