2131343212 has 12 divisors (see below), whose sum is σ = 3777064480. Its totient is φ = 1052181936.

The previous prime is 2131343191. The next prime is 2131343281. The reversal of 2131343212 is 2123431312.

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, 3372063 + ... + 3372694.

Almost surely, 2^2131343212 is an apocalyptic number.

It is an amenable number.

2131343212 is a deficient number, since it is larger than the sum of its proper divisors (1645721268).

2131343212 is a wasteful number, since it uses less digits than its factorization.

2131343212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744840 (or 6744838 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 2131343212 is about 46166.4728130707. The cubic root of 2131343212 is about 1286.9187547209.

Adding to 2131343212 its reverse (2123431312), we get a palindrome (4254774524).

The spelling of 2131343212 in words is "two billion, one hundred thirty-one million, three hundred forty-three thousand, two hundred twelve".