2003321420 has 24 divisors (see below), whose sum is σ = 4296487104. Its totient is φ = 784278656.

The previous prime is 2003321399. The next prime is 2003321443. The reversal of 2003321420 is 241233002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064657 + ... + 1066536.

It is an arithmetic number, because the mean of its divisors is an integer number (179020296).

Almost surely, 2^2003321420 is an apocalyptic number.

2003321420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003321420 is an abundant number, since it is smaller than the sum of its proper divisors (2293165684).

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

2003321420 is a wasteful number, since it uses less digits than its factorization.

2003321420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131249 (or 2131247 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2003321420 is about 44758.4787498414. The cubic root of 2003321420 is about 1260.6181186564.

Adding to 2003321420 its reverse (241233002), we get a palindrome (2244554422).

The spelling of 2003321420 in words is "two billion, three million, three hundred twenty-one thousand, four hundred twenty".