1133201100 has 72 divisors (see below), whose sum is σ = 3391814160. Its totient is φ = 291764480.

The previous prime is 1133201089. The next prime is 1133201101. The reversal of 1133201100 is 11023311.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1133201101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56427 + ... + 73826.

It is an arithmetic number, because the mean of its divisors is an integer number (47108530).

Almost surely, 2^1133201100 is an apocalyptic number.

1133201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133201100 is an abundant number, since it is smaller than the sum of its proper divisors (2258613060).

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

1133201100 is a wasteful number, since it uses less digits than its factorization.

1133201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130299 (or 130292 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1133201100 is about 33663.0524462652. The cubic root of 1133201100 is about 1042.5630507789.

Adding to 1133201100 its reverse (11023311), we get a palindrome (1144224411).

The spelling of 1133201100 in words is "one billion, one hundred thirty-three million, two hundred one thousand, one hundred".