20112303021213 has 16 divisors (see below), whose sum is σ = 28906219556480. Its totient is φ = 12365223908544.

The previous prime is 20112303021121. The next prime is 20112303021337. The reversal of 20112303021213 is 31212030321102.

It is not a de Polignac number, because 20112303021213 - 2¹² = 20112303017117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20112303021213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112303026213) 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, 241165081 + ... + 241248462.

It is an arithmetic number, because the mean of its divisors is an integer number (1806638722280).

Almost surely, 2^{20112303021213} is an apocalyptic number.

It is an amenable number.

20112303021213 is a deficient number, since it is larger than the sum of its proper divisors (8793916535267).

20112303021213 is a wasteful number, since it uses less digits than its factorization.

20112303021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482414628.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20112303021213 its reverse (31212030321102), we get a palindrome (51324333342315).

The spelling of 20112303021213 in words is "twenty trillion, one hundred twelve billion, three hundred three million, twenty-one thousand, two hundred thirteen".