23101420525 has 12 divisors (see below), whose sum is σ = 28653763264. Its totient is φ = 18475974000.

The previous prime is 23101420499. The next prime is 23101420549. The reversal of 23101420525 is 52502410132.

It is not a de Polignac number, because 23101420525 - 2⁵ = 23101420493 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 23101420525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36471 + ... + 218020.

Almost surely, 2^23101420525 is an apocalyptic number.

23101420525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23101420525 is a deficient number, since it is larger than the sum of its proper divisors (5552342739).

23101420525 is a wasteful number, since it uses less digits than its factorization.

23101420525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258132 (or 258127 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 23101420525 its reverse (52502410132), we get a palindrome (75603830657).

The spelling of 23101420525 in words is "twenty-three billion, one hundred one million, four hundred twenty thousand, five hundred twenty-five".