331341431 has 4 divisors (see below), whose sum is σ = 332520864. Its totient is φ = 330162000.

The previous prime is 331341391. The next prime is 331341449. The reversal of 331341431 is 134143133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331341431 - 2²² = 327147127 is a prime.

It is a super-2 number, since 2×331341431² = 219574287794255522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331341397 and 331341406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331341631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589295 + ... + 589856.

It is an arithmetic number, because the mean of its divisors is an integer number (83130216).

Almost surely, 2^331341431 is an apocalyptic number.

331341431 is a deficient number, since it is larger than the sum of its proper divisors (1179433).

331341431 is a wasteful number, since it uses less digits than its factorization.

331341431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179432.

The product of its digits is 1296, while the sum is 23.

The square root of 331341431 is about 18202.7863526439. The cubic root of 331341431 is about 691.9774062088.

Adding to 331341431 its reverse (134143133), we get a palindrome (465484564).

It can be divided in two parts, 3313 and 41431, that added together give a palindrome (44744).

The spelling of 331341431 in words is "three hundred thirty-one million, three hundred forty-one thousand, four hundred thirty-one".