431251023 has 16 divisors (see below), whose sum is σ = 657443840. Its totient is φ = 246316896.

The previous prime is 431250959. The next prime is 431251033. The reversal of 431251023 is 320152134.

It is not a de Polignac number, because 431251023 - 2⁶ = 431250959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431251033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70938 + ... + 76776.

It is an arithmetic number, because the mean of its divisors is an integer number (41090240).

Almost surely, 2^431251023 is an apocalyptic number.

431251023 is a deficient number, since it is larger than the sum of its proper divisors (226192817).

431251023 is a wasteful number, since it uses less digits than its factorization.

431251023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 431251023 is about 20766.5842882261. The cubic root of 431251023 is about 755.5155013425.

The spelling of 431251023 in words is "four hundred thirty-one million, two hundred fifty-one thousand, twenty-three".