23512321400 has 48 divisors (see below), whose sum is σ = 57543322200. Its totient is φ = 8909930880.

The previous prime is 23512321397. The next prime is 23512321477. The reversal of 23512321400 is 412321532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3089927 + ... + 3097526.

Almost surely, 2^23512321400 is an apocalyptic number.

23512321400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23512321400 is an abundant number, since it is smaller than the sum of its proper divisors (34031000800).

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

23512321400 is a wasteful number, since it uses less digits than its factorization.

23512321400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6187488 (or 6187479 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23512321400 its reverse (412321532), we get a palindrome (23924642932).

The spelling of 23512321400 in words is "twenty-three billion, five hundred twelve million, three hundred twenty-one thousand, four hundred".