2112131204 has 24 divisors (see below), whose sum is σ = 3921499008. Its totient is φ = 991952000.

The previous prime is 2112131201. The next prime is 2112131207. The reversal of 2112131204 is 4021312112.

It is an interprime number because it is at equal distance from previous prime (2112131201) and next prime (2112131207).

It is a super-2 number, since 2×2112131204² = 8922196445820979232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (2112131201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3329 + ... + 65079.

It is an arithmetic number, because the mean of its divisors is an integer number (163395792).

Almost surely, 2^2112131204 is an apocalyptic number.

It is an amenable number.

2112131204 is a deficient number, since it is larger than the sum of its proper divisors (1809367804).

2112131204 is a wasteful number, since it uses less digits than its factorization.

2112131204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62275 (or 62273 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2112131204 is about 45957.9286304333. The cubic root of 2112131204 is about 1283.0402997142.

Adding to 2112131204 its reverse (4021312112), we get a palindrome (6133443316).

It can be divided in two parts, 21121 and 31204, that added together give a palindrome (52325).

The spelling of 2112131204 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, two hundred four".