23012000000 has 252 divisors, whose sum is σ = 62756384208. Its totient is φ = 8352000000.

The previous prime is 23011999991. The next prime is 23012000017. The reversal of 23012000000 is 21032.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 43999739 + ... + 44000261.

Almost surely, 2^23012000000 is an apocalyptic number.

23012000000 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 23012000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31378192104).

23012000000 is an abundant number, since it is smaller than the sum of its proper divisors (39744384208).

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

23012000000 is an frugal number, since it uses more digits than its factorization.

23012000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 23012000000 its reverse (21032), we get a palindrome (23012021032).

The spelling of 23012000000 in words is "twenty-three billion, twelve million", and thus it is an aban number and an uban number.