1123575023 has 4 divisors (see below), whose sum is σ = 1123694208. Its totient is φ = 1123455840.

The previous prime is 1123574987. The next prime is 1123575031. The reversal of 1123575023 is 3205753211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3205753211 = 89 ⋅36019699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123575023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123575073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44111 + ... + 64752.

It is an arithmetic number, because the mean of its divisors is an integer number (280923552).

Almost surely, 2^1123575023 is an apocalyptic number.

1123575023 is a deficient number, since it is larger than the sum of its proper divisors (119185).

1123575023 is a wasteful number, since it uses less digits than its factorization.

1123575023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119184.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1123575023 is about 33519.7706286902. The cubic root of 1123575023 is about 1039.6026042720.

The spelling of 1123575023 in words is "one billion, one hundred twenty-three million, five hundred seventy-five thousand, twenty-three".