23131232030000 has 100 divisors (see below), whose sum is σ = 56078418074448. Its totient is φ = 9240036960000.

The previous prime is 23131232029993. The next prime is 23131232030029. The reversal of 23131232030000 is 3023213132.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5873390 + ... + 8986610.

Almost surely, 2^{23131232030000} is an apocalyptic number.

23131232030000 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 23131232030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28039209037224).

23131232030000 is an abundant number, since it is smaller than the sum of its proper divisors (32947186044448).

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

23131232030000 is an equidigital number, since it uses as much as digits as its factorization.

23131232030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113992 (or 3113971 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23131232030000 its reverse (3023213132), we get a palindrome (23134255243132).

The spelling of 23131232030000 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred thirty-two million, thirty thousand".