23012555500 has 192 divisors, whose sum is σ = 57424453632. Its totient is φ = 7980000000.

The previous prime is 23012555497. The next prime is 23012555543. The reversal of 23012555500 is 555521032.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12104550 + ... + 12106450.

It is an arithmetic number, because the mean of its divisors is an integer number (299085696).

Almost surely, 2^23012555500 is an apocalyptic number.

23012555500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23012555500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28712226816).

23012555500 is an abundant number, since it is smaller than the sum of its proper divisors (34411898132).

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

23012555500 is a wasteful number, since it uses less digits than its factorization.

23012555500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 23012555500 in words is "twenty-three billion, twelve million, five hundred fifty-five thousand, five hundred".