23431200120 has 48 divisors (see below), whose sum is σ = 76151401560. Its totient is φ = 6248319936.

The previous prime is 23431200059. The next prime is 23431200137. The reversal of 23431200120 is 2100213432.

23431200120 is a `hidden beast` number, since 2 + 343 + 1 + 200 + 120 = 666.

It is a super-2 number, since 2×23431200120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23431200093 and 23431200102.

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, 32542974 + ... + 32543693.

Almost surely, 2^23431200120 is an apocalyptic number.

23431200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431200120 is an abundant number, since it is smaller than the sum of its proper divisors (52720201440).

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

23431200120 is a wasteful number, since it uses less digits than its factorization.

23431200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65086684 (or 65086677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23431200120 its reverse (2100213432), we get a palindrome (25531413552).

The spelling of 23431200120 in words is "twenty-three billion, four hundred thirty-one million, two hundred thousand, one hundred twenty".