2131031120 has 40 divisors (see below), whose sum is σ = 4957040616. Its totient is φ = 852000768.

The previous prime is 2131031069. The next prime is 2131031137. The reversal of 2131031120 is 211301312.

It can be written as a sum of positive squares in 4 ways, for example, as 108910096 + 2022121024 = 10436^2 + 44968^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2131031095 and 2131031104.

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, 202304 + ... + 212576.

Almost surely, 2^2131031120 is an apocalyptic number.

2131031120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131031120 is an abundant number, since it is smaller than the sum of its proper divisors (2826009496).

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

2131031120 is a wasteful number, since it uses less digits than its factorization.

2131031120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12879 (or 12873 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2131031120 is about 46163.0926173713. The cubic root of 2131031120 is about 1286.8559372683.

Adding to 2131031120 its reverse (211301312), we get a palindrome (2342332432).

The spelling of 2131031120 in words is "two billion, one hundred thirty-one million, thirty-one thousand, one hundred twenty".