331421442140 has 24 divisors (see below), whose sum is σ = 696155826240. Its totient is φ = 132536043968.

The previous prime is 331421442119. The next prime is 331421442151. The reversal of 331421442140 is 41244124133.

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, 1949687 + ... + 2112846.

It is an arithmetic number, because the mean of its divisors is an integer number (29006492760).

Almost surely, 2^331421442140 is an apocalyptic number.

It is an amenable number.

331421442140 is an abundant number, since it is smaller than the sum of its proper divisors (364734384100).

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

331421442140 is a wasteful number, since it uses less digits than its factorization.

331421442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066621 (or 4066619 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 331421442140 its reverse (41244124133), we get a palindrome (372665566273).

The spelling of 331421442140 in words is "three hundred thirty-one billion, four hundred twenty-one million, four hundred forty-two thousand, one hundred forty".