1123224353920 has 64 divisors (see below), whose sum is σ = 2685702513600. Its totient is φ = 449207036928.

The previous prime is 1123224353851. The next prime is 1123224353947. The reversal of 1123224353920 is 293534223211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1123224353920.

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, 3378511 + ... + 3696049.

It is an arithmetic number, because the mean of its divisors is an integer number (41964101775).

Almost surely, 2^{1123224353920} is an apocalyptic number.

1123224353920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123224353920 is an abundant number, since it is smaller than the sum of its proper divisors (1562478159680).

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

1123224353920 is an equidigital number, since it uses as much as digits as its factorization.

1123224353920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323085 (or 323073 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 1123224353920 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-four million, three hundred fifty-three thousand, nine hundred twenty".