23229278125 has 60 divisors (see below), whose sum is σ = 31196011140. Its totient is φ = 17293760000.

The previous prime is 23229278123. The next prime is 23229278131. The reversal of 23229278125 is 52187292232.

It can be written as a sum of positive squares in 30 ways, for example, as 13240874761 + 9988403364 = 115069^2 + 99942^2 .

It is not a de Polignac number, because 23229278125 - 2¹ = 23229278123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23229278123) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 261003081 + ... + 261003169.

It is an arithmetic number, because the mean of its divisors is an integer number (519933519).

Almost surely, 2^23229278125 is an apocalyptic number.

23229278125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23229278125 is a deficient number, since it is larger than the sum of its proper divisors (7966733015).

23229278125 is an frugal number, since it uses more digits than its factorization.

23229278125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 111 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The spelling of 23229278125 in words is "twenty-three billion, two hundred twenty-nine million, two hundred seventy-eight thousand, one hundred twenty-five".