331043121012 has 24 divisors (see below), whose sum is σ = 772443271936. Its totient is φ = 110346375168.

The previous prime is 331043121011. The next prime is 331043121043. The reversal of 331043121012 is 210121340133.

It is a self number, because there is not a number n which added to its sum of digits gives 331043121012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331043121011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772733 + ... + 1950555.

Almost surely, 2^331043121012 is an apocalyptic number.

It is an amenable number.

331043121012 is an abundant number, since it is smaller than the sum of its proper divisors (441400150924).

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

331043121012 is a wasteful number, since it uses less digits than its factorization.

331043121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332967 (or 332965 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331043121012 its reverse (210121340133), we get a palindrome (541164461145).

The spelling of 331043121012 in words is "three hundred thirty-one billion, forty-three million, one hundred twenty-one thousand, twelve".