331144321244 has 24 divisors (see below), whose sum is σ = 632373775488. Its totient is φ = 150475107440.

The previous prime is 331144321237. The next prime is 331144321309. The reversal of 331144321244 is 442123441133.

It is a super-2 number, since 2×331144321244² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331144321244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977024 + ... + 1271559.

It is an arithmetic number, because the mean of its divisors is an integer number (26348907312).

Almost surely, 2^331144321244 is an apocalyptic number.

It is an amenable number.

331144321244 is a deficient number, since it is larger than the sum of its proper divisors (301229454244).

331144321244 is a wasteful number, since it uses less digits than its factorization.

331144321244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251945 (or 2251943 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 331144321244 its reverse (442123441133), we get a palindrome (773267762377).

The spelling of 331144321244 in words is "three hundred thirty-one billion, one hundred forty-four million, three hundred twenty-one thousand, two hundred forty-four".