220320021003 has 16 divisors (see below), whose sum is σ = 298687716096. Its totient is φ = 144417975840.

The previous prime is 220320020983. The next prime is 220320021007. The reversal of 220320021003 is 300120023022.

It is not a de Polignac number, because 220320021003 - 2⁵ = 220320020971 is a prime.

It is a super-2 number, since 2×220320021003² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220320021007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266626 + ... + 715352.

It is an arithmetic number, because the mean of its divisors is an integer number (18667982256).

Almost surely, 2^220320021003 is an apocalyptic number.

220320021003 is a deficient number, since it is larger than the sum of its proper divisors (78367695093).

220320021003 is a wasteful number, since it uses less digits than its factorization.

220320021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451474.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 220320021003 its reverse (300120023022), we get a palindrome (520440044025).

The spelling of 220320021003 in words is "two hundred twenty billion, three hundred twenty million, twenty-one thousand, three".