1123023423 has 8 divisors (see below), whose sum is σ = 1497786928. Its totient is φ = 748471104.

The previous prime is 1123023373. The next prime is 1123023427. The reversal of 1123023423 is 3243203211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123023423 - 2²¹ = 1120926271 is a prime.

It is a super-2 number, since 2×1123023423² = 2522363217213273858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123023423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123023427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39940 + ... + 61977.

It is an arithmetic number, because the mean of its divisors is an integer number (187223366).

Almost surely, 2^1123023423 is an apocalyptic number.

1123023423 is a deficient number, since it is larger than the sum of its proper divisors (374763505).

1123023423 is a wasteful number, since it uses less digits than its factorization.

1123023423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105593.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1123023423 is about 33511.5416386653. The cubic root of 1123023423 is about 1039.4324513668.

Adding to 1123023423 its reverse (3243203211), we get a palindrome (4366226634).

The spelling of 1123023423 in words is "one billion, one hundred twenty-three million, twenty-three thousand, four hundred twenty-three".