1133323220 has 24 divisors (see below), whose sum is σ = 2430618624. Its totient is φ = 443683616.

The previous prime is 1133323201. The next prime is 1133323223. The reversal of 1133323220 is 223233311.

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

It is a junction number, because it is equal to n+sod(n) for n = 1133323192 and 1133323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133323223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601892 + ... + 603771.

It is an arithmetic number, because the mean of its divisors is an integer number (101275776).

Almost surely, 2^1133323220 is an apocalyptic number.

1133323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133323220 is an abundant number, since it is smaller than the sum of its proper divisors (1297295404).

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

1133323220 is a wasteful number, since it uses less digits than its factorization.

1133323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205719 (or 1205717 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1133323220 is about 33664.8662554896. The cubic root of 1133323220 is about 1042.6005002150.

Adding to 1133323220 its reverse (223233311), we get a palindrome (1356556531).

The spelling of 1133323220 in words is "one billion, one hundred thirty-three million, three hundred twenty-three thousand, two hundred twenty".