2331131249 has 2 divisors, whose sum is σ = 2331131250. Its totient is φ = 2331131248.

The previous prime is 2331131237. The next prime is 2331131263. The reversal of 2331131249 is 9421311332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1729312225 + 601819024 = 41585^2 + 24532^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331131249 - 2¹² = 2331127153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2331131269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165565624 + 1165565625.

It is an arithmetic number, because the mean of its divisors is an integer number (1165565625).

Almost surely, 2^2331131249 is an apocalyptic number.

It is an amenable number.

2331131249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331131249 is an equidigital number, since it uses as much as digits as its factorization.

2331131249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 2331131249 is about 48281.7900351675. The cubic root of 2331131249 is about 1325.9350227543.

The spelling of 2331131249 in words is "two billion, three hundred thirty-one million, one hundred thirty-one thousand, two hundred forty-nine".