2131302204 has 36 divisors (see below), whose sum is σ = 5561250240. Its totient is φ = 687516480.

The previous prime is 2131302203. The next prime is 2131302209. The reversal of 2131302204 is 4022031312.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131302203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 953769 + ... + 956000.

Almost surely, 2^2131302204 is an apocalyptic number.

It is an amenable number.

2131302204 is an abundant number, since it is smaller than the sum of its proper divisors (3429948036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131302204 is a wasteful number, since it uses less digits than its factorization.

2131302204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909810 (or 1909805 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2131302204 is about 46166.0286791056. The cubic root of 2131302204 is about 1286.9105010365.

Adding to 2131302204 its reverse (4022031312), we get a palindrome (6153333516).

The spelling of 2131302204 in words is "two billion, one hundred thirty-one million, three hundred two thousand, two hundred four".