2112131564 has 12 divisors (see below), whose sum is σ = 3786382488. Its totient is φ = 1030308000.

The previous prime is 2112131521. The next prime is 2112131573. The reversal of 2112131564 is 4651312112.

It is a super-2 number, since 2×2112131564² = 8922199487290172192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6439262 + ... + 6439589.

It is an arithmetic number, because the mean of its divisors is an integer number (315531874).

Almost surely, 2^2112131564 is an apocalyptic number.

It is an amenable number.

2112131564 is a deficient number, since it is larger than the sum of its proper divisors (1674250924).

2112131564 is a wasteful number, since it uses less digits than its factorization.

2112131564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878896 (or 12878894 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 2112131564 is about 45957.9325470587. The cubic root of 2112131564 is about 1283.0403726097.

Adding to 2112131564 its reverse (4651312112), we get a palindrome (6763443676).

The spelling of 2112131564 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, five hundred sixty-four".