431312023 has 2 divisors, whose sum is σ = 431312024. Its totient is φ = 431312022.

The previous prime is 431311987. The next prime is 431312033. The reversal of 431312023 is 320213134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431312023 is a prime.

It is a super-2 number, since 2×431312023² = 372060122368705058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431312033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215656011 + 215656012.

It is an arithmetic number, because the mean of its divisors is an integer number (215656012).

Almost surely, 2^431312023 is an apocalyptic number.

431312023 is a deficient number, since it is larger than the sum of its proper divisors (1).

431312023 is an equidigital number, since it uses as much as digits as its factorization.

431312023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 431312023 is about 20768.0529419587. The cubic root of 431312023 is about 755.5511219519.

Adding to 431312023 its reverse (320213134), we get a palindrome (751525157).

It can be divided in two parts, 43131 and 2023, that added together give a palindrome (45154).

The spelling of 431312023 in words is "four hundred thirty-one million, three hundred twelve thousand, twenty-three".