431104231 has 2 divisors, whose sum is σ = 431104232. Its totient is φ = 431104230.

The previous prime is 431104229. The next prime is 431104253. The reversal of 431104231 is 132401134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431104231 - 2¹ = 431104229 is a prime.

It is a super-2 number, since 2×431104231² = 371701715972202722, which contains 22 as substring.

Together with 431104229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 431104199 and 431104208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431104211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215552115 + 215552116.

It is an arithmetic number, because the mean of its divisors is an integer number (215552116).

Almost surely, 2^431104231 is an apocalyptic number.

431104231 is a deficient number, since it is larger than the sum of its proper divisors (1).

431104231 is an equidigital number, since it uses as much as digits as its factorization.

431104231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 431104231 is about 20763.0496555781. The cubic root of 431104231 is about 755.4297692040.

Adding to 431104231 its reverse (132401134), we get a palindrome (563505365).

The spelling of 431104231 in words is "four hundred thirty-one million, one hundred four thousand, two hundred thirty-one".