1133321100 has 72 divisors (see below), whose sum is σ = 3367732368. Its totient is φ = 294048000.

The previous prime is 1133321089. The next prime is 1133321117. The reversal of 1133321100 is 11233311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1133321100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39951 + ... + 62150.

Almost surely, 2^1133321100 is an apocalyptic number.

1133321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133321100 is an abundant number, since it is smaller than the sum of its proper divisors (2234411268).

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

1133321100 is a wasteful number, since it uses less digits than its factorization.

1133321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102155 (or 102148 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1133321100 is about 33664.8347686425. The cubic root of 1133321100 is about 1042.5998501167.

Adding to 1133321100 its reverse (11233311), we get a palindrome (1144554411).

The spelling of 1133321100 in words is "one billion, one hundred thirty-three million, three hundred twenty-one thousand, one hundred".