431403023 has 2 divisors, whose sum is σ = 431403024. Its totient is φ = 431403022.

The previous prime is 431403013. The next prime is 431403031. The reversal of 431403023 is 320304134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431403023 - 2⁸ = 431402767 is a prime.

It is a super-2 number, since 2×431403023² = 372217136507077058, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 431402986 and 431403004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431403013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215701511 + 215701512.

It is an arithmetic number, because the mean of its divisors is an integer number (215701512).

Almost surely, 2^431403023 is an apocalyptic number.

431403023 is a deficient number, since it is larger than the sum of its proper divisors (1).

431403023 is an equidigital number, since it uses as much as digits as its factorization.

431403023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 431403023 is about 20770.2436913966. The cubic root of 431403023 is about 755.6042546521.

Adding to 431403023 its reverse (320304134), we get a palindrome (751707157).

The spelling of 431403023 in words is "four hundred thirty-one million, four hundred three thousand, twenty-three".