2003112320220 has 144 divisors (see below), whose sum is σ = 6629895129312. Its totient is φ = 485499371520.

The previous prime is 2003112320137. The next prime is 2003112320227. The reversal of 2003112320220 is 220232113002.

2003112320220 is a `hidden beast` number, since 200 + 3 + 11 + 232 + 0 + 220 = 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 = 2003112320193 and 2003112320202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003112320227) 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, 9384604 + ... + 9595676.

It is an arithmetic number, because the mean of its divisors is an integer number (46040938398).

Almost surely, 2^{2003112320220} is an apocalyptic number.

2003112320220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003112320220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3314947564656).

2003112320220 is an abundant number, since it is smaller than the sum of its proper divisors (4626782809092).

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

2003112320220 is a wasteful number, since it uses less digits than its factorization.

2003112320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215892 (or 215887 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2003112320220 its reverse (220232113002), we get a palindrome (2223344433222).

The spelling of 2003112320220 in words is "two trillion, three billion, one hundred twelve million, three hundred twenty thousand, two hundred twenty".