231111230100000 has 144 divisors (see below), whose sum is σ = 758285191391616. Its totient is φ = 61629661280000.

The previous prime is 231111230099947. The next prime is 231111230100131. The reversal of 231111230100000 is 1032111132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384885384 + ... + 385485383.

It is an arithmetic number, because the mean of its divisors is an integer number (5265869384664).

Almost surely, 2^{231111230100000} is an apocalyptic number.

231111230100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231111230100000 is an abundant number, since it is smaller than the sum of its proper divisors (527173961291616).

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

231111230100000 is an frugal number, since it uses more digits than its factorization.

231111230100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770370805 (or 770370777 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 231111230100000 its reverse (1032111132), we get a palindrome (231112262211132).

The spelling of 231111230100000 in words is "two hundred thirty-one trillion, one hundred eleven billion, two hundred thirty million, one hundred thousand".