1123133320 has 32 divisors (see below), whose sum is σ = 2660054400. Its totient is φ = 425608128.

The previous prime is 1123133273. The next prime is 1123133351. The reversal of 1123133320 is 233313211.

It is a super-2 number, since 2×1123133320² = 2522856908988444800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 738144 + ... + 739663.

It is an arithmetic number, because the mean of its divisors is an integer number (83126700).

Almost surely, 2^1123133320 is an apocalyptic number.

1123133320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123133320 is an abundant number, since it is smaller than the sum of its proper divisors (1536921080).

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

1123133320 is a wasteful number, since it uses less digits than its factorization.

1123133320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477837 (or 1477833 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1123133320 is about 33513.1812873681. The cubic root of 1123133320 is about 1039.4663559082.

Adding to 1123133320 its reverse (233313211), we get a palindrome (1356446531).

It can be divided in two parts, 11231 and 33320, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 1123133320 in words is "one billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred twenty".