1133323020 has 288 divisors, whose sum is σ = 3889529280. Its totient is φ = 265420800.

The previous prime is 1133322997. The next prime is 1133323027. The reversal of 1133323020 is 203233311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1133322984 and 1133323002.

It is not an unprimeable number, because it can be changed into a prime (1133323027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5872044 + ... + 5872236.

It is an arithmetic number, because the mean of its divisors is an integer number (13505310).

Almost surely, 2^1133323020 is an apocalyptic number.

1133323020 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 1133323020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944764640).

1133323020 is an abundant number, since it is smaller than the sum of its proper divisors (2756206260).

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

1133323020 is a wasteful number, since it uses less digits than its factorization.

1133323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1133323020 is about 33664.8632850336. The cubic root of 1133323020 is about 1042.6004388850.

Adding to 1133323020 its reverse (203233311), we get a palindrome (1336556331).

The spelling of 1133323020 in words is "one billion, one hundred thirty-three million, three hundred twenty-three thousand, twenty".