31320022969 has 2 divisors, whose sum is σ = 31320022970. Its totient is φ = 31320022968.

The previous prime is 31320022933. The next prime is 31320022999. The reversal of 31320022969 is 96922002313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27254047744 + 4065975225 = 165088^2 + 63765^2 .

It is a cyclic number.

It is not a de Polignac number, because 31320022969 - 2¹³ = 31320014777 is a prime.

It is a super-2 number, since 2×31320022969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31320022999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660011484 + 15660011485.

It is an arithmetic number, because the mean of its divisors is an integer number (15660011485).

Almost surely, 2^31320022969 is an apocalyptic number.

It is an amenable number.

31320022969 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320022969 is an equidigital number, since it uses as much as digits as its factorization.

31320022969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 31320022969 in words is "thirty-one billion, three hundred twenty million, twenty-two thousand, nine hundred sixty-nine".