331123026420 has 72 divisors (see below), whose sum is σ = 1007284660200. Its totient is φ = 88046449920.

The previous prime is 331123026407. The next prime is 331123026431. The reversal of 331123026420 is 24620321133.

331123026420 is a `hidden beast` number, since 3 + 3 + 1 + 1 + 230 + 2 + 6 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 101609212644 + 229513813776 = 318762^2 + 479076^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2572671 + ... + 2698310.

It is an arithmetic number, because the mean of its divisors is an integer number (13990064725).

Almost surely, 2^331123026420 is an apocalyptic number.

331123026420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331123026420 is an abundant number, since it is smaller than the sum of its proper divisors (676161633780).

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

331123026420 is a wasteful number, since it uses less digits than its factorization.

331123026420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271345 (or 5271340 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 331123026420 its reverse (24620321133), we get a palindrome (355743347553).

The spelling of 331123026420 in words is "three hundred thirty-one billion, one hundred twenty-three million, twenty-six thousand, four hundred twenty".