2003131120122 has 96 divisors (see below), whose sum is σ = 4971636480960. Its totient is φ = 592892606880.

The previous prime is 2003131120121. The next prime is 2003131120157. The reversal of 2003131120122 is 2210211313002.

2003131120122 is a `hidden beast` number, since 200 + 31 + 311 + 2 + 0 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2003131120095 and 2003131120104.

It is not an unprimeable number, because it can be changed into a prime (2003131120121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186388 + ... + 2010224.

It is an arithmetic number, because the mean of its divisors is an integer number (51787880010).

Almost surely, 2^{2003131120122} is an apocalyptic number.

2003131120122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003131120122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485818240480).

2003131120122 is an abundant number, since it is smaller than the sum of its proper divisors (2968505360838).

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

2003131120122 is a wasteful number, since it uses less digits than its factorization.

2003131120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823945 (or 1823896 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2003131120122 its reverse (2210211313002), we get a palindrome (4213342433124).

The spelling of 2003131120122 in words is "two trillion, three billion, one hundred thirty-one million, one hundred twenty thousand, one hundred twenty-two".