2131202140 has 96 divisors (see below), whose sum is σ = 4708948608. Its totient is φ = 809472000.

The previous prime is 2131202107. The next prime is 2131202153. The reversal of 2131202140 is 412021312.

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, 6852585 + ... + 6852895.

It is an arithmetic number, because the mean of its divisors is an integer number (49051548).

Almost surely, 2^2131202140 is an apocalyptic number.

2131202140 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 2131202140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354474304).

2131202140 is an abundant number, since it is smaller than the sum of its proper divisors (2577746468).

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

2131202140 is a wasteful number, since it uses less digits than its factorization.

2131202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2131202140 is about 46164.9449257767. The cubic root of 2131202140 is about 1286.8903607004.

Adding to 2131202140 its reverse (412021312), we get a palindrome (2543223452).

The spelling of 2131202140 in words is "two billion, one hundred thirty-one million, two hundred two thousand, one hundred forty".