331132009979 has 2 divisors, whose sum is σ = 331132009980. Its totient is φ = 331132009978.

The previous prime is 331132009973. The next prime is 331132010003. The reversal of 331132009979 is 979900231133.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331132009979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (331132009973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165566004989 + 165566004990.

It is an arithmetic number, because the mean of its divisors is an integer number (165566004990).

Almost surely, 2^331132009979 is an apocalyptic number.

331132009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

331132009979 is an equidigital number, since it uses as much as digits as its factorization.

331132009979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The spelling of 331132009979 in words is "three hundred thirty-one billion, one hundred thirty-two million, nine thousand, nine hundred seventy-nine".