2131320412 has 24 divisors (see below), whose sum is σ = 4022018000. Its totient is φ = 982388736.

The previous prime is 2131320409. The next prime is 2131320427. The reversal of 2131320412 is 2140231312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131320412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13339 + ... + 66637.

Almost surely, 2^2131320412 is an apocalyptic number.

It is an amenable number.

2131320412 is a deficient number, since it is larger than the sum of its proper divisors (1890697588).

2131320412 is a wasteful number, since it uses less digits than its factorization.

2131320412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54085 (or 54083 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2131320412 is about 46166.2258799655. The cubic root of 2131320412 is about 1286.9141657756.

Adding to 2131320412 its reverse (2140231312), we get a palindrome (4271551724).

The spelling of 2131320412 in words is "two billion, one hundred thirty-one million, three hundred twenty thousand, four hundred twelve".