331122302203981 has 2 divisors, whose sum is σ = 331122302203982. Its totient is φ = 331122302203980.

The previous prime is 331122302203967. The next prime is 331122302203991. The reversal of 331122302203981 is 189302203221133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212829292368900 + 118293009835081 = 14588670^2 + 10876259^2 .

It is an emirp because it is prime and its reverse (189302203221133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331122302203981 is a prime.

It is a super-2 number, since 2×331122302203981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331122302203951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165561151101990 + 165561151101991.

It is an arithmetic number, because the mean of its divisors is an integer number (165561151101991).

Almost surely, 2^{331122302203981} is an apocalyptic number.

It is an amenable number.

331122302203981 is a deficient number, since it is larger than the sum of its proper divisors (1).

331122302203981 is an equidigital number, since it uses as much as digits as its factorization.

331122302203981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 331122302203981 in words is "three hundred thirty-one trillion, one hundred twenty-two billion, three hundred two million, two hundred three thousand, nine hundred eighty-one".