20012202121323 has 4 divisors (see below), whose sum is σ = 26682936161768. Its totient is φ = 13341468080880.

The previous prime is 20012202121313. The next prime is 20012202121349. The reversal of 20012202121323 is 32312120221002.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20012202121323 - 2¹² = 20012202117227 is a prime.

It is a super-2 number, since 2×20012202121323² (a number of 27 digits) contains 22 as substring.

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 20012202121323.

It is not an unprimeable number, because it can be changed into a prime (20012202121313) 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, 3335367020218 + ... + 3335367020223.

It is an arithmetic number, because the mean of its divisors is an integer number (6670734040442).

Almost surely, 2^{20012202121323} is an apocalyptic number.

20012202121323 is a deficient number, since it is larger than the sum of its proper divisors (6670734040445).

20012202121323 is an equidigital number, since it uses as much as digits as its factorization.

20012202121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670734040444.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20012202121323 its reverse (32312120221002), we get a palindrome (52324322342325).

The spelling of 20012202121323 in words is "twenty trillion, twelve billion, two hundred two million, one hundred twenty-one thousand, three hundred twenty-three".