31320022871 has 2 divisors, whose sum is σ = 31320022872. Its totient is φ = 31320022870.

The previous prime is 31320022861. The next prime is 31320022873. The reversal of 31320022871 is 17822002313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31320022871 - 2²² = 31315828567 is a prime.

Together with 31320022873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31320022873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660011435 + 15660011436.

It is an arithmetic number, because the mean of its divisors is an integer number (15660011436).

Almost surely, 2^31320022871 is an apocalyptic number.

31320022871 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320022871 is an equidigital number, since it uses as much as digits as its factorization.

31320022871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 31320022871 in words is "thirty-one billion, three hundred twenty million, twenty-two thousand, eight hundred seventy-one".