31845305711 has 2 divisors, whose sum is σ = 31845305712. Its totient is φ = 31845305710.

The previous prime is 31845305689. The next prime is 31845305717. The reversal of 31845305711 is 11750354813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31845305711 - 2¹⁴ = 31845289327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31845305717) 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, 15922652855 + 15922652856.

It is an arithmetic number, because the mean of its divisors is an integer number (15922652856).

Almost surely, 2^31845305711 is an apocalyptic number.

31845305711 is a deficient number, since it is larger than the sum of its proper divisors (1).

31845305711 is an equidigital number, since it uses as much as digits as its factorization.

31845305711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 31845305711 in words is "thirty-one billion, eight hundred forty-five million, three hundred five thousand, seven hundred eleven".