2521132331 has 2 divisors, whose sum is σ = 2521132332. Its totient is φ = 2521132330.

The previous prime is 2521132309. The next prime is 2521132333. The reversal of 2521132331 is 1332311252.

2521132331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2521132331 - 2²² = 2516938027 is a prime.

It is a super-2 number, since 2×2521132331² = 12712216460826987122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2521132333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2521132297 and 2521132306.

It is not a weakly prime, because it can be changed into another prime (2521132333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260566165 + 1260566166.

It is an arithmetic number, because the mean of its divisors is an integer number (1260566166).

Almost surely, 2^2521132331 is an apocalyptic number.

2521132331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521132331 is an equidigital number, since it uses as much as digits as its factorization.

2521132331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 2521132331 is about 50210.8786121095. The cubic root of 2521132331 is about 1361.0222150093.

Adding to 2521132331 its reverse (1332311252), we get a palindrome (3853443583).

The spelling of 2521132331 in words is "two billion, five hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".