3125131211 has 2 divisors, whose sum is σ = 3125131212. Its totient is φ = 3125131210.

The previous prime is 3125131181. The next prime is 3125131213. The reversal of 3125131211 is 1121315213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3125131211 - 2³⁰ = 2051389387 is a prime.

It is a Sophie Germain prime.

Together with 3125131213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3125131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562565605 + 1562565606.

It is an arithmetic number, because the mean of its divisors is an integer number (1562565606).

Almost surely, 2^3125131211 is an apocalyptic number.

3125131211 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125131211 is an equidigital number, since it uses as much as digits as its factorization.

3125131211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 20.

The square root of 3125131211 is about 55902.8730120376. The cubic root of 3125131211 is about 1462.0293308623.

Adding to 3125131211 its reverse (1121315213), we get a palindrome (4246446424).

The spelling of 3125131211 in words is "three billion, one hundred twenty-five million, one hundred thirty-one thousand, two hundred eleven".