2003121112110 has 128 divisors (see below), whose sum is σ = 5063333068800. Its totient is φ = 506699303040.

The previous prime is 2003121112103. The next prime is 2003121112127. The reversal of 2003121112110 is 112111213002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2003121112110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5736921 + ... + 6076059.

It is an arithmetic number, because the mean of its divisors is an integer number (39557289600).

Almost surely, 2^{2003121112110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003121112110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2531666534400).

2003121112110 is an abundant number, since it is smaller than the sum of its proper divisors (3060211956690).

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

2003121112110 is a wasteful number, since it uses less digits than its factorization.

2003121112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339326.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2003121112110 its reverse (112111213002), we get a palindrome (2115232325112).

The spelling of 2003121112110 in words is "two trillion, three billion, one hundred twenty-one million, one hundred twelve thousand, one hundred ten".