331942123009 has 12 divisors (see below), whose sum is σ = 386332578324. Its totient is φ = 284377529184.

The previous prime is 331942123003. The next prime is 331942123033. The reversal of 331942123009 is 900321249133.

It can be written as a sum of positive squares in 2 ways, for example, as 90495680625 + 241446442384 = 300825^2 + 491372^2 .

It is not a de Polignac number, because 331942123009 - 2⁵ = 331942122977 is a prime.

It is a super-2 number, since 2×331942123009² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331942123003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1620082 + ... + 1813435.

It is an arithmetic number, because the mean of its divisors is an integer number (32194381527).

Almost surely, 2^331942123009 is an apocalyptic number.

It is an amenable number.

331942123009 is a deficient number, since it is larger than the sum of its proper divisors (54390455315).

331942123009 is a wasteful number, since it uses less digits than its factorization.

331942123009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435504 (or 3435497 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 331942123009 in words is "three hundred thirty-one billion, nine hundred forty-two million, one hundred twenty-three thousand, nine".