23151203250 has 64 divisors (see below), whose sum is σ = 66040475904. Its totient is φ = 5291702400.

The previous prime is 23151203209. The next prime is 23151203263. The reversal of 23151203250 is 5230215132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23151203250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2199627 + ... + 2210126.

It is an arithmetic number, because the mean of its divisors is an integer number (1031882436).

Almost surely, 2^23151203250 is an apocalyptic number.

23151203250 is an abundant number, since it is smaller than the sum of its proper divisors (42889272654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23151203250 is a wasteful number, since it uses less digits than its factorization.

23151203250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4409780 (or 4409770 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 23151203250 its reverse (5230215132), we get a palindrome (28381418382).

The spelling of 23151203250 in words is "twenty-three billion, one hundred fifty-one million, two hundred three thousand, two hundred fifty".