431341331 has 6 divisors (see below), whose sum is σ = 446728932. Its totient is φ = 416466680.

The previous prime is 431341319. The next prime is 431341369. The reversal of 431341331 is 133143134.

It is not a de Polignac number, because 431341331 - 2²² = 427147027 is a prime.

It is a super-2 number, since 2×431341331² = 372110687657703122, 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 = 431341297 and 431341306.

It is not an unprimeable number, because it can be changed into a prime (431341381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255605 + ... + 257286.

It is an arithmetic number, because the mean of its divisors is an integer number (74454822).

Almost surely, 2^431341331 is an apocalyptic number.

431341331 is a deficient number, since it is larger than the sum of its proper divisors (15387601).

431341331 is an equidigital number, since it uses as much as digits as its factorization.

431341331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512949 (or 512920 counting only the distinct ones).

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

The square root of 431341331 is about 20768.7585329504. The cubic root of 431341331 is about 755.5682350004.

Adding to 431341331 its reverse (133143134), we get a palindrome (564484465).

The spelling of 431341331 in words is "four hundred thirty-one million, three hundred forty-one thousand, three hundred thirty-one".