220123012003 has 4 divisors (see below), whose sum is σ = 220123950928. Its totient is φ = 220122073080.

The previous prime is 220123011989. The next prime is 220123012037. The reversal of 220123012003 is 300210321022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 220123012003 - 2²⁵ = 220089457571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220123012103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210013 + ... + 695953.

It is an arithmetic number, because the mean of its divisors is an integer number (55030987732).

Almost surely, 2^220123012003 is an apocalyptic number.

220123012003 is a deficient number, since it is larger than the sum of its proper divisors (938925).

220123012003 is an equidigital number, since it uses as much as digits as its factorization.

220123012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938924.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 220123012003 its reverse (300210321022), we get a palindrome (520333333025).

The spelling of 220123012003 in words is "two hundred twenty billion, one hundred twenty-three million, twelve thousand, three".