1128123300 has 36 divisors (see below), whose sum is σ = 3264037616. Its totient is φ = 300832800.

The previous prime is 1128123299. The next prime is 1128123307. The reversal of 1128123300 is 33218211.

It is not an unprimeable number, because it can be changed into a prime (1128123307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1879906 + ... + 1880505.

Almost surely, 2^1128123300 is an apocalyptic number.

1128123300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128123300 is an abundant number, since it is smaller than the sum of its proper divisors (2135914316).

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

1128123300 is a wasteful number, since it uses less digits than its factorization.

1128123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760428 (or 3760421 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1128123300 is about 33587.5467993719. The cubic root of 1128123300 is about 1041.0035000957.

The spelling of 1128123300 in words is "one billion, one hundred twenty-eight million, one hundred twenty-three thousand, three hundred".