331120111101209 has 2 divisors, whose sum is σ = 331120111101210. Its totient is φ = 331120111101208.

The previous prime is 331120111101181. The next prime is 331120111101271. The reversal of 331120111101209 is 902101111021133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310051524558400 + 21068586542809 = 17608280^2 + 4590053^2 .

It is a cyclic number.

It is not a de Polignac number, because 331120111101209 - 2¹⁶ = 331120111035673 is a prime.

It is not a weakly prime, because it can be changed into another prime (331120111103209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165560055550604 + 165560055550605.

It is an arithmetic number, because the mean of its divisors is an integer number (165560055550605).

Almost surely, 2^{331120111101209} is an apocalyptic number.

It is an amenable number.

331120111101209 is a deficient number, since it is larger than the sum of its proper divisors (1).

331120111101209 is an equidigital number, since it uses as much as digits as its factorization.

331120111101209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 331120111101209 in words is "three hundred thirty-one trillion, one hundred twenty billion, one hundred eleven million, one hundred one thousand, two hundred nine".