1123551330 has 64 divisors (see below), whose sum is σ = 2947881600. Its totient is φ = 271800320.

The previous prime is 1123551323. The next prime is 1123551349. The reversal of 1123551330 is 331553211.

It is a super-2 number, since 2×1123551330² = 2524735182289537800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123551330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164626 + ... + 171314.

It is an arithmetic number, because the mean of its divisors is an integer number (46060650).

Almost surely, 2^1123551330 is an apocalyptic number.

1123551330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123551330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473940800).

1123551330 is an abundant number, since it is smaller than the sum of its proper divisors (1824330270).

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

1123551330 is a wasteful number, since it uses less digits than its factorization.

1123551330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1123551330 is about 33519.4172085375. The cubic root of 1123551330 is about 1039.5952968004.

The spelling of 1123551330 in words is "one billion, one hundred twenty-three million, five hundred fifty-one thousand, three hundred thirty".