1121300128 has 36 divisors (see below), whose sum is σ = 2390445918. Its totient is φ = 517520640.

The previous prime is 1121300107. The next prime is 1121300129. The reversal of 1121300128 is 8210031211.

It can be written as a sum of positive squares in 3 ways, for example, as 893531664 + 227768464 = 29892^2 + 15092^2 .

It is not an unprimeable number, because it can be changed into a prime (1121300129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98263 + ... + 109078.

Almost surely, 2^1121300128 is an apocalyptic number.

It is an amenable number.

1121300128 is an abundant number, since it is smaller than the sum of its proper divisors (1269145790).

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

1121300128 is a wasteful number, since it uses less digits than its factorization.

1121300128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207377 (or 207356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 1121300128 is about 33485.8198048069. The cubic root of 1121300128 is about 1038.9005046821.

Adding to 1121300128 its reverse (8210031211), we get a palindrome (9331331339).

The spelling of 1121300128 in words is "one billion, one hundred twenty-one million, three hundred thousand, one hundred twenty-eight".