1133333220 has 96 divisors (see below), whose sum is σ = 3374784000. Its totient is φ = 283193344.

The previous prime is 1133333219. The next prime is 1133333233. The reversal of 1133333220 is 223333311.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241456 + ... + 246104.

It is an arithmetic number, because the mean of its divisors is an integer number (35154000).

Almost surely, 2^1133333220 is an apocalyptic number.

1133333220 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 1133333220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687392000).

1133333220 is an abundant number, since it is smaller than the sum of its proper divisors (2241450780).

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

1133333220 is a wasteful number, since it uses less digits than its factorization.

1133333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917 (or 4915 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1133333220 is about 33665.0147779561. The cubic root of 1133333220 is about 1042.6035667054.

Adding to 1133333220 its reverse (223333311), we get a palindrome (1356666531).

Subtracting from 1133333220 its reverse (223333311), we obtain a palindrome (909999909).

It can be divided in two parts, 113 and 3333220, that added together give a palindrome (3333333).

The spelling of 1133333220 in words is "one billion, one hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty".