331320079 has 2 divisors, whose sum is σ = 331320080. Its totient is φ = 331320078.

The previous prime is 331320053. The next prime is 331320103. The reversal of 331320079 is 970023133.

It is a strong prime.

It is an emirp because it is prime and its reverse (970023133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331320079 - 2⁵ = 331320047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331320019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165660039 + 165660040.

It is an arithmetic number, because the mean of its divisors is an integer number (165660040).

Almost surely, 2^331320079 is an apocalyptic number.

331320079 is a deficient number, since it is larger than the sum of its proper divisors (1).

331320079 is an equidigital number, since it uses as much as digits as its factorization.

331320079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 331320079 is about 18202.1998395798. The cubic root of 331320079 is about 691.9625419654.

The spelling of 331320079 in words is "three hundred thirty-one million, three hundred twenty thousand, seventy-nine".