1133531300 has 72 divisors (see below), whose sum is σ = 2695994112. Its totient is φ = 410256000.

The previous prime is 1133531281. The next prime is 1133531303. The reversal of 1133531300 is 31353311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1133531303) 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, 242990 + ... + 247610.

Almost surely, 2^1133531300 is an apocalyptic number.

1133531300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133531300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347997056).

1133531300 is an abundant number, since it is smaller than the sum of its proper divisors (1562462812).

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

1133531300 is a wasteful number, since it uses less digits than its factorization.

1133531300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4869 (or 4862 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 1133531300 is about 33667.9565759492. The cubic root of 1133531300 is about 1042.6643040303.

Adding to 1133531300 its reverse (31353311), we get a palindrome (1164884611).

The spelling of 1133531300 in words is "one billion, one hundred thirty-three million, five hundred thirty-one thousand, three hundred".