331432423 has 12 divisors (see below), whose sum is σ = 386707152. Its totient is φ = 283227840.

The previous prime is 331432417. The next prime is 331432427. The reversal of 331432423 is 324234133.

It is a de Polignac number, because none of the positive numbers 2^k-331432423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331432427) 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, 6478 + ... + 26548.

It is an arithmetic number, because the mean of its divisors is an integer number (32225596).

Almost surely, 2^331432423 is an apocalyptic number.

331432423 is a deficient number, since it is larger than the sum of its proper divisors (55274729).

331432423 is a wasteful number, since it uses less digits than its factorization.

331432423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20422 (or 20415 counting only the distinct ones).

The product of its digits is 5184, while the sum is 25.

The square root of 331432423 is about 18205.2855786445. The cubic root of 331432423 is about 692.0407433382.

Adding to 331432423 its reverse (324234133), we get a palindrome (655666556).

The spelling of 331432423 in words is "three hundred thirty-one million, four hundred thirty-two thousand, four hundred twenty-three".