1121470128 has 30 divisors (see below), whose sum is σ = 3138559164. Its totient is φ = 373823328.

The previous prime is 1121470073. The next prime is 1121470169. The reversal of 1121470128 is 8210741211.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3893850 + ... + 3894137.

Almost surely, 2^1121470128 is an apocalyptic number.

1121470128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1121470128 is an abundant number, since it is smaller than the sum of its proper divisors (2017089036).

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

1121470128 is a wasteful number, since it uses less digits than its factorization.

1121470128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788001 (or 7787992 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1121470128 is about 33488.3580965087. The cubic root of 1121470128 is about 1038.9530045011.

The spelling of 1121470128 in words is "one billion, one hundred twenty-one million, four hundred seventy thousand, one hundred twenty-eight".