31345225351211 has 2 divisors, whose sum is σ = 31345225351212. Its totient is φ = 31345225351210.

The previous prime is 31345225351093. The next prime is 31345225351277. The reversal of 31345225351211 is 11215352254313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31345225351211 - 2³⁸ = 31070347444267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31345225357211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672612675605 + 15672612675606.

It is an arithmetic number, because the mean of its divisors is an integer number (15672612675606).

Almost surely, 2^{31345225351211} is an apocalyptic number.

31345225351211 is a deficient number, since it is larger than the sum of its proper divisors (1).

31345225351211 is an equidigital number, since it uses as much as digits as its factorization.

31345225351211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The spelling of 31345225351211 in words is "thirty-one trillion, three hundred forty-five billion, two hundred twenty-five million, three hundred fifty-one thousand, two hundred eleven".