331201120369949 has 2 divisors, whose sum is σ = 331201120369950. Its totient is φ = 331201120369948.

The previous prime is 331201120369909. The next prime is 331201120370033. The reversal of 331201120369949 is 949963021102133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 292164153696100 + 39036966673849 = 17092810^2 + 6247957^2 .

It is an emirp because it is prime and its reverse (949963021102133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331201120369949 - 2¹² = 331201120365853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331201120369949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331201120369909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165600560184974 + 165600560184975.

It is an arithmetic number, because the mean of its divisors is an integer number (165600560184975).

Almost surely, 2^{331201120369949} is an apocalyptic number.

It is an amenable number.

331201120369949 is a deficient number, since it is larger than the sum of its proper divisors (1).

331201120369949 is an equidigital number, since it uses as much as digits as its factorization.

331201120369949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 331201120369949 in words is "three hundred thirty-one trillion, two hundred one billion, one hundred twenty million, three hundred sixty-nine thousand, nine hundred forty-nine".