1123322031220 has 24 divisors (see below), whose sum is σ = 2359081534824. Its totient is φ = 449308761216.

The previous prime is 1123322031193. The next prime is 1123322031239. The reversal of 1123322031220 is 221302233211.

It can be written as a sum of positive squares in 4 ways, for example, as 285880464 + 1123036150756 = 16908^2 + 1059734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1123322031191 and 1123322031200.

It is a congruent number.

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, 789639 + ... + 1694158.

It is an arithmetic number, because the mean of its divisors is an integer number (98295063951).

Almost surely, 2^{1123322031220} is an apocalyptic number.

1123322031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123322031220 is an abundant number, since it is smaller than the sum of its proper divisors (1235759503604).

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

1123322031220 is a wasteful number, since it uses less digits than its factorization.

1123322031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506419 (or 2506417 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1123322031220 its reverse (221302233211), we get a palindrome (1344624264431).

The spelling of 1123322031220 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-two million, thirty-one thousand, two hundred twenty".