331213042033361 has 2 divisors, whose sum is σ = 331213042033362. Its totient is φ = 331213042033360.

The previous prime is 331213042033337. The next prime is 331213042033381. The reversal of 331213042033361 is 163330240312133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 313947687407761 + 17265354625600 = 17718569^2 + 4155160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331213042033361 is a prime.

It is not a weakly prime, because it can be changed into another prime (331213042033381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165606521016680 + 165606521016681.

It is an arithmetic number, because the mean of its divisors is an integer number (165606521016681).

Almost surely, 2^{331213042033361} is an apocalyptic number.

It is an amenable number.

331213042033361 is a deficient number, since it is larger than the sum of its proper divisors (1).

331213042033361 is an equidigital number, since it uses as much as digits as its factorization.

331213042033361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 331213042033361 its reverse (163330240312133), we get a palindrome (494543282345494).

The spelling of 331213042033361 in words is "three hundred thirty-one trillion, two hundred thirteen billion, forty-two million, thirty-three thousand, three hundred sixty-one".