2131383120 has 160 divisors (see below), whose sum is σ = 6727378944. Its totient is φ = 558144000.

The previous prime is 2131383077. The next prime is 2131383157. The reversal of 2131383120 is 213831312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3732435 + ... + 3733005.

Almost surely, 2^2131383120 is an apocalyptic number.

2131383120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131383120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3363689472).

2131383120 is an abundant number, since it is smaller than the sum of its proper divisors (4595995824).

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

2131383120 is a wasteful number, since it uses less digits than its factorization.

2131383120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2131383120 is about 46166.9050294689. The cubic root of 2131383120 is about 1286.9267869065.

The spelling of 2131383120 in words is "two billion, one hundred thirty-one million, three hundred eighty-three thousand, one hundred twenty".