2131421132 has 12 divisors (see below), whose sum is σ = 3892160496. Its totient is φ = 1019375280.

The previous prime is 2131421113. The next prime is 2131421153. The reversal of 2131421132 is 2311241312.

It is a super-2 number, since 2×2131421132² = 9085912083872322848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11583719 + ... + 11583902.

It is an arithmetic number, because the mean of its divisors is an integer number (324346708).

Almost surely, 2^2131421132 is an apocalyptic number.

It is an amenable number.

2131421132 is a deficient number, since it is larger than the sum of its proper divisors (1760739364).

2131421132 is a wasteful number, since it uses less digits than its factorization.

2131421132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23167648 (or 23167646 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2131421132 is about 46167.3167078183. The cubic root of 2131421132 is about 1286.9344373957.

Adding to 2131421132 its reverse (2311241312), we get a palindrome (4442662444).

The spelling of 2131421132 in words is "two billion, one hundred thirty-one million, four hundred twenty-one thousand, one hundred thirty-two".