331013220247 has 2 divisors, whose sum is σ = 331013220248. Its totient is φ = 331013220246.

The previous prime is 331013220191. The next prime is 331013220269. The reversal of 331013220247 is 742022310133.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331013220247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331013220347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165506610123 + 165506610124.

It is an arithmetic number, because the mean of its divisors is an integer number (165506610124).

Almost surely, 2^331013220247 is an apocalyptic number.

331013220247 is a deficient number, since it is larger than the sum of its proper divisors (1).

331013220247 is an equidigital number, since it uses as much as digits as its factorization.

331013220247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 331013220247 in words is "three hundred thirty-one billion, thirteen million, two hundred twenty thousand, two hundred forty-seven".