1023431023 has 4 divisors (see below), whose sum is σ = 1067928048. Its totient is φ = 978934000.

The previous prime is 1023431011. The next prime is 1023431027. The reversal of 1023431023 is 3201343201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201343201 = 7 ⋅457334743.

It is a cyclic number.

It is not a de Polignac number, because 1023431023 - 2⁹ = 1023430511 is a prime.

It is a super-2 number, since 2×1023431023² = 2094822117677653058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023431027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22248478 + ... + 22248523.

It is an arithmetic number, because the mean of its divisors is an integer number (266982012).

Almost surely, 2^1023431023 is an apocalyptic number.

1023431023 is a deficient number, since it is larger than the sum of its proper divisors (44497025).

1023431023 is an equidigital number, since it uses as much as digits as its factorization.

1023431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44497024.

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

The square root of 1023431023 is about 31991.1084990814. The cubic root of 1023431023 is about 1007.7501214488.

Adding to 1023431023 its reverse (3201343201), we get a palindrome (4224774224).

The spelling of 1023431023 in words is "one billion, twenty-three million, four hundred thirty-one thousand, twenty-three".