1123998442 has 8 divisors (see below), whose sum is σ = 1926854496. Its totient is φ = 481713612.

The previous prime is 1123998433. The next prime is 1123998451. The reversal of 1123998442 is 2448993211.

It is an interprime number because it is at equal distance from previous prime (1123998433) and next prime (1123998451).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40142788 + ... + 40142815.

It is an arithmetic number, because the mean of its divisors is an integer number (240856812).

Almost surely, 2^1123998442 is an apocalyptic number.

1123998442 is a deficient number, since it is larger than the sum of its proper divisors (802856054).

1123998442 is an equidigital number, since it uses as much as digits as its factorization.

1123998442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80285612.

The product of its digits is 124416, while the sum is 43.

The square root of 1123998442 is about 33526.0859928504. The cubic root of 1123998442 is about 1039.7331792085.

The spelling of 1123998442 in words is "one billion, one hundred twenty-three million, nine hundred ninety-eight thousand, four hundred forty-two".