1123204231320 has 128 divisors (see below), whose sum is σ = 3468206592000. Its totient is φ = 290881543680.

The previous prime is 1123204231319. The next prime is 1123204231333. The reversal of 1123204231320 is 231324023211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392880 + ... + 1549439.

It is an arithmetic number, because the mean of its divisors is an integer number (27095364000).

Almost surely, 2^{1123204231320} is an apocalyptic number.

1123204231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123204231320 is an abundant number, since it is smaller than the sum of its proper divisors (2345002360680).

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

1123204231320 is a wasteful number, since it uses less digits than its factorization.

1123204231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942473 (or 1942469 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1123204231320 its reverse (231324023211), we get a palindrome (1354528254531).

The spelling of 1123204231320 in words is "one trillion, one hundred twenty-three billion, two hundred four million, two hundred thirty-one thousand, three hundred twenty".