1223123122320 has 160 divisors (see below), whose sum is σ = 4379696645760. Its totient is φ = 279072645120.

The previous prime is 1223123122279. The next prime is 1223123122367. The reversal of 1223123122320 is 232213213221.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13581715 + ... + 13671474.

It is an arithmetic number, because the mean of its divisors is an integer number (27373104036).

Almost surely, 2^{1223123122320} is an apocalyptic number.

1223123122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223123122320 is an abundant number, since it is smaller than the sum of its proper divisors (3156573523440).

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

1223123122320 is a wasteful number, since it uses less digits than its factorization.

1223123122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27253233 (or 27253227 counting only the distinct ones).

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

Adding to 1223123122320 its reverse (232213213221), we get a palindrome (1455336335541).

Subtracting from 1223123122320 its reverse (232213213221), we obtain a palindrome (990909909099).

The spelling of 1223123122320 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, one hundred twenty-two thousand, three hundred twenty".