3125443331 has 2 divisors, whose sum is σ = 3125443332. Its totient is φ = 3125443330.

The previous prime is 3125443289. The next prime is 3125443333. The reversal of 3125443331 is 1333445213.

3125443331 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 a de Polignac number, because none of the positive numbers 2^k-3125443331 is a prime.

It is a super-2 number, since 2×3125443331² = 19536792030584751122, which contains 22 as substring.

Together with 3125443333, 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 = 3125443294 and 3125443303.

It is not a weakly prime, because it can be changed into another prime (3125443333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562721665 + 1562721666.

It is an arithmetic number, because the mean of its divisors is an integer number (1562721666).

Almost surely, 2^3125443331 is an apocalyptic number.

3125443331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125443331 is an equidigital number, since it uses as much as digits as its factorization.

3125443331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

The square root of 3125443331 is about 55905.6645698806. The cubic root of 3125443331 is about 1462.0780022484.

Adding to 3125443331 its reverse (1333445213), we get a palindrome (4458888544).

The spelling of 3125443331 in words is "three billion, one hundred twenty-five million, four hundred forty-three thousand, three hundred thirty-one".