31368244811 has 2 divisors, whose sum is σ = 31368244812. Its totient is φ = 31368244810.

The previous prime is 31368244771. The next prime is 31368244891. The reversal of 31368244811 is 11844286313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31368244811 is a prime.

It is not a weakly prime, because it can be changed into another prime (31368244891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15684122405 + 15684122406.

It is an arithmetic number, because the mean of its divisors is an integer number (15684122406).

Almost surely, 2^31368244811 is an apocalyptic number.

31368244811 is a deficient number, since it is larger than the sum of its proper divisors (1).

31368244811 is an equidigital number, since it uses as much as digits as its factorization.

31368244811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The spelling of 31368244811 in words is "thirty-one billion, three hundred sixty-eight million, two hundred forty-four thousand, eight hundred eleven".