20123220201003 has 16 divisors (see below), whose sum is σ = 29812353816960. Its totient is φ = 13415401050408.

The previous prime is 20123220200999. The next prime is 20123220201043. The reversal of 20123220201003 is 30010202232102.

It is not a de Polignac number, because 20123220201003 - 2² = 20123220200999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20123220201043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663776 + ... + 6880562.

It is an arithmetic number, because the mean of its divisors is an integer number (1863272113560).

Almost surely, 2^{20123220201003} is an apocalyptic number.

20123220201003 is a deficient number, since it is larger than the sum of its proper divisors (9689133615957).

20123220201003 is a wasteful number, since it uses less digits than its factorization.

20123220201003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393543 (or 4393537 counting only the distinct ones).

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

Adding to 20123220201003 its reverse (30010202232102), we get a palindrome (50133422433105).

The spelling of 20123220201003 in words is "twenty trillion, one hundred twenty-three billion, two hundred twenty million, two hundred one thousand, three".