1133113220 has 24 divisors (see below), whose sum is σ = 2384763864. Its totient is φ = 452249856.

The previous prime is 1133113213. The next prime is 1133113237. The reversal of 1133113220 is 223113311.

It can be written as a sum of positive squares in 4 ways, for example, as 387932416 + 745180804 = 19696^2 + 27298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52847 + ... + 71126.

It is an arithmetic number, because the mean of its divisors is an integer number (99365161).

Almost surely, 2^1133113220 is an apocalyptic number.

1133113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133113220 is an abundant number, since it is smaller than the sum of its proper divisors (1251650644).

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

1133113220 is a wasteful number, since it uses less digits than its factorization.

1133113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124439 (or 124437 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1133113220 is about 33661.7471323162. The cubic root of 1133113220 is about 1042.5360997492.

Adding to 1133113220 its reverse (223113311), we get a palindrome (1356226531).

Subtracting from 1133113220 its reverse (223113311), we obtain a palindrome (909999909).

The spelling of 1133113220 in words is "one billion, one hundred thirty-three million, one hundred thirteen thousand, two hundred twenty".