331231203321349 has 2 divisors, whose sum is σ = 331231203321350. Its totient is φ = 331231203321348.

The previous prime is 331231203321299. The next prime is 331231203321443. The reversal of 331231203321349 is 943123302132133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294878202192324 + 36353001129025 = 17172018^2 + 6029345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331231203321349 is a prime.

It is a super-2 number, since 2×331231203321349² (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 (331231206321349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165615601660674 + 165615601660675.

It is an arithmetic number, because the mean of its divisors is an integer number (165615601660675).

Almost surely, 2^{331231203321349} is an apocalyptic number.

It is an amenable number.

331231203321349 is a deficient number, since it is larger than the sum of its proper divisors (1).

331231203321349 is an equidigital number, since it uses as much as digits as its factorization.

331231203321349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 40.

The spelling of 331231203321349 in words is "three hundred thirty-one trillion, two hundred thirty-one billion, two hundred three million, three hundred twenty-one thousand, three hundred forty-nine".