1123119978 has 32 divisors (see below), whose sum is σ = 2334782016. Its totient is φ = 359860608.

The previous prime is 1123119913. The next prime is 1123119997. The reversal of 1123119978 is 8799113211.

1123119978 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1123119978² = 2522796969965440968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12051 + ... + 48902.

It is an arithmetic number, because the mean of its divisors is an integer number (72961938).

Almost surely, 2^1123119978 is an apocalyptic number.

1123119978 is an abundant number, since it is smaller than the sum of its proper divisors (1211662038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123119978 is a wasteful number, since it uses less digits than its factorization.

1123119978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61078.

The product of its digits is 27216, while the sum is 42.

The square root of 1123119978 is about 33512.9822307714. The cubic root of 1123119978 is about 1039.4622398592.

The spelling of 1123119978 in words is "one billion, one hundred twenty-three million, one hundred nineteen thousand, nine hundred seventy-eight".