2131400100 has 36 divisors (see below), whose sum is σ = 6166851824. Its totient is φ = 568373280.

The previous prime is 2131400083. The next prime is 2131400111. The reversal of 2131400100 is 10041312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3552034 + ... + 3552633.

Almost surely, 2^2131400100 is an apocalyptic number.

2131400100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131400100 is an abundant number, since it is smaller than the sum of its proper divisors (4035451724).

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

2131400100 is a wasteful number, since it uses less digits than its factorization.

2131400100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104684 (or 7104677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2131400100 is about 46167.0889270701. The cubic root of 2131400100 is about 1286.9302043993.

Adding to 2131400100 its reverse (10041312), we get a palindrome (2141441412).

The spelling of 2131400100 in words is "two billion, one hundred thirty-one million, four hundred thousand, one hundred".