2131200432 has 120 divisors (see below), whose sum is σ = 6088788368. Its totient is φ = 695692800.

The previous prime is 2131200367. The next prime is 2131200457. The reversal of 2131200432 is 2340021312.

2131200432 is a `hidden beast` number, since 2 + 1 + 31 + 200 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2907138 + ... + 2907870.

Almost surely, 2^2131200432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131200432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3044394184).

2131200432 is an abundant number, since it is smaller than the sum of its proper divisors (3957587936).

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

2131200432 is a wasteful number, since it uses less digits than its factorization.

2131200432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2131200432 is about 46164.9264268882. The cubic root of 2131200432 is about 1286.8900169180.

Adding to 2131200432 its reverse (2340021312), we get a palindrome (4471221744).

The spelling of 2131200432 in words is "two billion, one hundred thirty-one million, two hundred thousand, four hundred thirty-two".