331384994019901 has 6 divisors (see below), whose sum is σ = 342419666038206. Its totient is φ = 320695155502200.

The previous prime is 331384994019869. The next prime is 331384994019907. The reversal of 331384994019901 is 109910499483133.

It can be written as a sum of positive squares in only one way, i.e., 316686013114276 + 14698980905625 = 17795674^2 + 3833925^2 .

It is not a de Polignac number, because 331384994019901 - 2⁵ = 331384994019869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331384994019907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 172416749310 + ... + 172416751231.

It is an arithmetic number, because the mean of its divisors is an integer number (57069944339701).

Almost surely, 2^{331384994019901} is an apocalyptic number.

331384994019901 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

331384994019901 is a deficient number, since it is larger than the sum of its proper divisors (11034672018305).

331384994019901 is an equidigital number, since it uses as much as digits as its factorization.

331384994019901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344833500603 (or 344833500572 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 64.

The spelling of 331384994019901 in words is "three hundred thirty-one trillion, three hundred eighty-four billion, nine hundred ninety-four million, nineteen thousand, nine hundred one".