1112401128 has 32 divisors (see below), whose sum is σ = 2802908160. Its totient is φ = 367879680.

The previous prime is 1112401097. The next prime is 1112401159. The reversal of 1112401128 is 8211042111.

It is an interprime number because it is at equal distance from previous prime (1112401097) and next prime (1112401159).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179433 + ... + 185528.

It is an arithmetic number, because the mean of its divisors is an integer number (87590880).

Almost surely, 2^1112401128 is an apocalyptic number.

It is an amenable number.

1112401128 is an abundant number, since it is smaller than the sum of its proper divisors (1690507032).

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

1112401128 is a wasteful number, since it uses less digits than its factorization.

1112401128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365097 (or 365093 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 1112401128 is about 33352.6779734402. The cubic root of 1112401128 is about 1036.1448518659.

Adding to 1112401128 its reverse (8211042111), we get a palindrome (9323443239).

The spelling of 1112401128 in words is "one billion, one hundred twelve million, four hundred one thousand, one hundred twenty-eight".