1123428715 has 4 divisors (see below), whose sum is σ = 1348114464. Its totient is φ = 898742968.

The previous prime is 1123428673. The next prime is 1123428749. The reversal of 1123428715 is 5178243211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123428715 - 2⁷ = 1123428587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112342867 + ... + 112342876.

It is an arithmetic number, because the mean of its divisors is an integer number (337028616).

Almost surely, 2^1123428715 is an apocalyptic number.

1123428715 is a deficient number, since it is larger than the sum of its proper divisors (224685749).

1123428715 is an equidigital number, since it uses as much as digits as its factorization.

1123428715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224685748.

The product of its digits is 13440, while the sum is 34.

The square root of 1123428715 is about 33517.5881441371. The cubic root of 1123428715 is about 1039.5574778445.

The spelling of 1123428715 in words is "one billion, one hundred twenty-three million, four hundred twenty-eight thousand, seven hundred fifteen".