1123489623 has 16 divisors (see below), whose sum is σ = 1526031360. Its totient is φ = 735014976.

The previous prime is 1123489607. The next prime is 1123489639. The reversal of 1123489623 is 3269843211.

It is an interprime number because it is at equal distance from previous prime (1123489607) and next prime (1123489639).

It is not a de Polignac number, because 1123489623 - 2⁴ = 1123489607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123489603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102211 + ... + 112667.

It is an arithmetic number, because the mean of its divisors is an integer number (95376960).

Almost surely, 2^1123489623 is an apocalyptic number.

1123489623 is a deficient number, since it is larger than the sum of its proper divisors (402541737).

1123489623 is a wasteful number, since it uses less digits than its factorization.

1123489623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126.

The product of its digits is 62208, while the sum is 39.

The square root of 1123489623 is about 33518.4967294179. The cubic root of 1123489623 is about 1039.5762644460.

The spelling of 1123489623 in words is "one billion, one hundred twenty-three million, four hundred eighty-nine thousand, six hundred twenty-three".