331404234430212 has 18 divisors (see below), whose sum is σ = 837716259254238. Its totient is φ = 110468078143392.

The previous prime is 331404234430187. The next prime is 331404234430237. The reversal of 331404234430212 is 212034432404133.

331404234430212 is a `hidden beast` number, since 3 + 3 + 1 + 4 + 0 + 4 + 2 + 3 + 4 + 430 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (331404234430187) and next prime (331404234430237).

It can be written as a sum of positive squares in only one way, i.e., 254533179177216 + 76871055252996 = 15954096^2 + 8767614^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 9205673178617 = 331404234430212 / (3 + 3 + 1 + 4 + 0 + 4 + 2 + 3 + 4 + 4 + 3 + 0 + 2 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4602836589273 + ... + 4602836589344.

It is an arithmetic number, because the mean of its divisors is an integer number (46539792180791).

Almost surely, 2^{331404234430212} is an apocalyptic number.

It is an amenable number.

331404234430212 is an abundant number, since it is smaller than the sum of its proper divisors (506312024824026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331404234430212 is a wasteful number, since it uses less digits than its factorization.

331404234430212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9205673178627 (or 9205673178622 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 331404234430212 its reverse (212034432404133), we get a palindrome (543438666834345).

The spelling of 331404234430212 in words is "three hundred thirty-one trillion, four hundred four billion, two hundred thirty-four million, four hundred thirty thousand, two hundred twelve".