1031123023 has 24 divisors (see below), whose sum is σ = 1241377920. Its totient is φ = 853090560.

The previous prime is 1031123017. The next prime is 1031123057. The reversal of 1031123023 is 3203211301.

It is a de Polignac number, because none of the positive numbers 2^k-1031123023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031122988 and 1031123006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031123123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 863715 + ... + 864907.

It is an arithmetic number, because the mean of its divisors is an integer number (51724080).

Almost surely, 2^1031123023 is an apocalyptic number.

1031123023 is a deficient number, since it is larger than the sum of its proper divisors (210254897).

1031123023 is a wasteful number, since it uses less digits than its factorization.

1031123023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1031123023 is about 32111.1043565929. The cubic root of 1031123023 is about 1010.2685372286.

Adding to 1031123023 its reverse (3203211301), we get a palindrome (4234334324).

The spelling of 1031123023 in words is "one billion, thirty-one million, one hundred twenty-three thousand, twenty-three".