31320303979 has 2 divisors, whose sum is σ = 31320303980. Its totient is φ = 31320303978.

The previous prime is 31320303967. The next prime is 31320304013. The reversal of 31320303979 is 97930302313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31320303979 - 2⁷ = 31320303851 is a prime.

It is a super-2 number, since 2×31320303979² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31320303929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660151989 + 15660151990.

It is an arithmetic number, because the mean of its divisors is an integer number (15660151990).

Almost surely, 2^31320303979 is an apocalyptic number.

31320303979 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320303979 is an equidigital number, since it uses as much as digits as its factorization.

31320303979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 40.

The spelling of 31320303979 in words is "thirty-one billion, three hundred twenty million, three hundred three thousand, nine hundred seventy-nine".