2312173100 has 18 divisors (see below), whose sum is σ = 5017415844. Its totient is φ = 924869200.

The previous prime is 2312173079. The next prime is 2312173151. The reversal of 2312173100 is 13712132.

It is a super-2 number, since 2×2312173100² = 10692288888727220000, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 11560766 + ... + 11560965.

Almost surely, 2^2312173100 is an apocalyptic number.

2312173100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312173100 is an abundant number, since it is smaller than the sum of its proper divisors (2705242744).

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

2312173100 is a wasteful number, since it uses less digits than its factorization.

2312173100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23121745 (or 23121738 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2312173100 is about 48085.0610896981. The cubic root of 2312173100 is about 1322.3308031203.

Adding to 2312173100 its reverse (13712132), we get a palindrome (2325885232).

The spelling of 2312173100 in words is "two billion, three hundred twelve million, one hundred seventy-three thousand, one hundred".