2003123221120 has 64 divisors (see below), whose sum is σ = 5472818812800. Its totient is φ = 686785102848.

The previous prime is 2003123221111. The next prime is 2003123221123. The reversal of 2003123221120 is 211223213002.

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

It is not an unprimeable number, because it can be changed into a prime (2003123221123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223558380 + ... + 223567339.

It is an arithmetic number, because the mean of its divisors is an integer number (85512793950).

Almost surely, 2^{2003123221120} is an apocalyptic number.

2003123221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003123221120 is an abundant number, since it is smaller than the sum of its proper divisors (3469695591680).

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

2003123221120 is an equidigital number, since it uses as much as digits as its factorization.

2003123221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447125745 (or 447125733 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2003123221120 its reverse (211223213002), we get a palindrome (2214346434122).

The spelling of 2003123221120 in words is "two trillion, three billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred twenty".