2152232131231 has 12 divisors (see below), whose sum is σ = 2696202890472. Its totient is φ = 1702864982448.

The previous prime is 2152232131187. The next prime is 2152232131237. The reversal of 2152232131231 is 1321312322512.

It is not a de Polignac number, because 2152232131231 - 2³¹ = 2150084647583 is a prime.

It is a super-2 number, since 2×2152232131231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2152232131231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152232131237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1689349545 + ... + 1689350818.

It is an arithmetic number, because the mean of its divisors is an integer number (224683574206).

Almost surely, 2^{2152232131231} is an apocalyptic number.

2152232131231 is a deficient number, since it is larger than the sum of its proper divisors (543970759241).

2152232131231 is a wasteful number, since it uses less digits than its factorization.

2152232131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378700390 (or 3378700383 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

Adding to 2152232131231 its reverse (1321312322512), we get a palindrome (3473544453743).

The spelling of 2152232131231 in words is "two trillion, one hundred fifty-two billion, two hundred thirty-two million, one hundred thirty-one thousand, two hundred thirty-one".