20123213002203 has 16 divisors (see below), whose sum is σ = 27288007741440. Its totient is φ = 13186985052384.

The previous prime is 20123213002187. The next prime is 20123213002213. The reversal of 20123213002203 is 30220031232102.

It is a happy number.

It is not a de Polignac number, because 20123213002203 - 2⁴ = 20123213002187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20123213002203.

It is not an unprimeable number, because it can be changed into a prime (20123213002213) 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, 2668876 + ... + 6882537.

It is an arithmetic number, because the mean of its divisors is an integer number (1705500483840).

Almost surely, 2^{20123213002203} is an apocalyptic number.

20123213002203 is a deficient number, since it is larger than the sum of its proper divisors (7164794739237).

20123213002203 is a wasteful number, since it uses less digits than its factorization.

20123213002203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9563378.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20123213002203 its reverse (30220031232102), we get a palindrome (50343244234305).

The spelling of 20123213002203 in words is "twenty trillion, one hundred twenty-three billion, two hundred thirteen million, two thousand, two hundred three".