2003103020322 has 72 divisors (see below), whose sum is σ = 4501636394112. Its totient is φ = 643703911920.

The previous prime is 2003103020263. The next prime is 2003103020431. The reversal of 2003103020322 is 2230203013002.

It is a happy number.

2003103020322 is a `hidden beast` number, since 2 + 0 + 0 + 310 + 30 + 2 + 0 + 322 = 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 = 2003103020295 and 2003103020304.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4329223 + ... + 4769525.

It is an arithmetic number, because the mean of its divisors is an integer number (62522727696).

Almost surely, 2^{2003103020322} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2003103020322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2250818197056).

2003103020322 is an abundant number, since it is smaller than the sum of its proper divisors (2498533373790).

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

2003103020322 is a wasteful number, since it uses less digits than its factorization.

2003103020322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440636 (or 440602 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 2003103020322 its reverse (2230203013002), we get a palindrome (4233306033324).

The spelling of 2003103020322 in words is "two trillion, three billion, one hundred three million, twenty thousand, three hundred twenty-two".