331131336643452 has 48 divisors (see below), whose sum is σ = 781213336797600. Its totient is φ = 109156670128128.

The previous prime is 331131336643391. The next prime is 331131336643477. The reversal of 331131336643452 is 254346633131133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271325623 + ... + 272543310.

It is an arithmetic number, because the mean of its divisors is an integer number (16275277849950).

Almost surely, 2^{331131336643452} is an apocalyptic number.

It is an amenable number.

331131336643452 is an abundant number, since it is smaller than the sum of its proper divisors (450082000154148).

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

331131336643452 is a wasteful number, since it uses less digits than its factorization.

331131336643452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543869502 (or 543869500 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 48.

Adding to 331131336643452 its reverse (254346633131133), we get a palindrome (585477969774585).

The spelling of 331131336643452 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, three hundred thirty-six million, six hundred forty-three thousand, four hundred fifty-two".