31325905211 has 2 divisors, whose sum is σ = 31325905212. Its totient is φ = 31325905210.

The previous prime is 31325905181. The next prime is 31325905277. The reversal of 31325905211 is 11250952313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31325905211 is a prime.

It is not a weakly prime, because it can be changed into another prime (31325905711) 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, 15662952605 + 15662952606.

It is an arithmetic number, because the mean of its divisors is an integer number (15662952606).

Almost surely, 2^31325905211 is an apocalyptic number.

31325905211 is a deficient number, since it is larger than the sum of its proper divisors (1).

31325905211 is an equidigital number, since it uses as much as digits as its factorization.

31325905211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The spelling of 31325905211 in words is "thirty-one billion, three hundred twenty-five million, nine hundred five thousand, two hundred eleven".