1123330331220 has 24 divisors (see below), whose sum is σ = 3145324927584. Its totient is φ = 299554754976.

The previous prime is 1123330331203. The next prime is 1123330331239. The reversal of 1123330331220 is 221330333211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9361086034 + ... + 9361086153.

It is an arithmetic number, because the mean of its divisors is an integer number (131055205316).

Almost surely, 2^{1123330331220} is an apocalyptic number.

1123330331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123330331220 is an abundant number, since it is smaller than the sum of its proper divisors (2021994596364).

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

1123330331220 is a wasteful number, since it uses less digits than its factorization.

1123330331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18722172199 (or 18722172197 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1123330331220 its reverse (221330333211), we get a palindrome (1344660664431).

The spelling of 1123330331220 in words is "one trillion, one hundred twenty-three billion, three hundred thirty million, three hundred thirty-one thousand, two hundred twenty".