2031131382 has 32 divisors (see below), whose sum is σ = 4683681792. Its totient is φ = 575186304.

The previous prime is 2031131381. The next prime is 2031131383. The reversal of 2031131382 is 2831311302.

It is an interprime number because it is at equal distance from previous prime (2031131381) and next prime (2031131383).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031131381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209238 + ... + 218729.

It is an arithmetic number, because the mean of its divisors is an integer number (146365056).

Almost surely, 2^2031131382 is an apocalyptic number.

2031131382 is an abundant number, since it is smaller than the sum of its proper divisors (2652550410).

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

2031131382 is a wasteful number, since it uses less digits than its factorization.

2031131382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428092.

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

The square root of 2031131382 is about 45068.0749755301. The cubic root of 2031131382 is about 1266.4246022046.

Adding to 2031131382 its reverse (2831311302), we get a palindrome (4862442684).

The spelling of 2031131382 in words is "two billion, thirty-one million, one hundred thirty-one thousand, three hundred eighty-two".