2312312172 has 12 divisors (see below), whose sum is σ = 5395395096. Its totient is φ = 770770720.

The previous prime is 2312312159. The next prime is 2312312173. The reversal of 2312312172 is 2712132132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2312312173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96346329 + ... + 96346352.

It is an arithmetic number, because the mean of its divisors is an integer number (449616258).

Almost surely, 2^2312312172 is an apocalyptic number.

It is an amenable number.

2312312172 is an abundant number, since it is smaller than the sum of its proper divisors (3083082924).

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

2312312172 is a wasteful number, since it uses less digits than its factorization.

2312312172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192692688 (or 192692686 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 2312312172 is about 48086.5071719708. The cubic root of 2312312172 is about 1322.3573143278.

The spelling of 2312312172 in words is "two billion, three hundred twelve million, three hundred twelve thousand, one hundred seventy-two".