1123231023 has 32 divisors (see below), whose sum is σ = 1680000000. Its totient is φ = 741682656.

The previous prime is 1123231009. The next prime is 1123231027. The reversal of 1123231023 is 3201323211.

It is not a de Polignac number, because 1123231023 - 2⁵ = 1123230991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123230987 and 1123231005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123231027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1874878 + ... + 1875476.

It is an arithmetic number, because the mean of its divisors is an integer number (52500000).

Almost surely, 2^1123231023 is an apocalyptic number.

1123231023 is a deficient number, since it is larger than the sum of its proper divisors (556768977).

1123231023 is a wasteful number, since it uses less digits than its factorization.

1123231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1123231023 is about 33514.6389358441. The cubic root of 1123231023 is about 1039.4964965972.

Adding to 1123231023 its reverse (3201323211), we get a palindrome (4324554234).

The spelling of 1123231023 in words is "one billion, one hundred twenty-three million, two hundred thirty-one thousand, twenty-three".