2003121100120 has 32 divisors (see below), whose sum is σ = 5150882829600. Its totient is φ = 686784377088.

The previous prime is 2003121100093. The next prime is 2003121100121. The reversal of 2003121100120 is 210011213002.

It is a self number, because there is not a number n which added to its sum of digits gives 2003121100120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003121100121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3577001685 + ... + 3577002244.

It is an arithmetic number, because the mean of its divisors is an integer number (160965088425).

Almost surely, 2^{2003121100120} is an apocalyptic number.

2003121100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003121100120 is an abundant number, since it is smaller than the sum of its proper divisors (3147761729480).

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

2003121100120 is a wasteful number, since it uses less digits than its factorization.

2003121100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7154003947 (or 7154003943 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2003121100120 its reverse (210011213002), we get a palindrome (2213132313122).

The spelling of 2003121100120 in words is "two trillion, three billion, one hundred twenty-one million, one hundred thousand, one hundred twenty".