431523023 has 2 divisors, whose sum is σ = 431523024. Its totient is φ = 431523022.

The previous prime is 431522981. The next prime is 431523049. The reversal of 431523023 is 320325134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431523023 - 2²² = 427328719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431523023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431523083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215761511 + 215761512.

It is an arithmetic number, because the mean of its divisors is an integer number (215761512).

Almost surely, 2^431523023 is an apocalyptic number.

431523023 is a deficient number, since it is larger than the sum of its proper divisors (1).

431523023 is an equidigital number, since it uses as much as digits as its factorization.

431523023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 431523023 is about 20773.1322385431. The cubic root of 431523023 is about 755.6743083295.

Adding to 431523023 its reverse (320325134), we get a palindrome (751848157).

The spelling of 431523023 in words is "four hundred thirty-one million, five hundred twenty-three thousand, twenty-three".