21310144312202 has 64 divisors (see below), whose sum is σ = 34081440629760. Its totient is φ = 9972125564544.

The previous prime is 21310144312183. The next prime is 21310144312207. The reversal of 21310144312202 is 20221344101312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21310144312207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272961449 + ... + 273039507.

It is an arithmetic number, because the mean of its divisors is an integer number (532522509840).

Almost surely, 2^{21310144312202} is an apocalyptic number.

21310144312202 is a deficient number, since it is larger than the sum of its proper divisors (12771296317558).

21310144312202 is a wasteful number, since it uses less digits than its factorization.

21310144312202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78747.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21310144312202 its reverse (20221344101312), we get a palindrome (41531488413514).

The spelling of 21310144312202 in words is "twenty-one trillion, three hundred ten billion, one hundred forty-four million, three hundred twelve thousand, two hundred two".