20211321310113 has 8 divisors (see below), whose sum is σ = 26959550349888. Its totient is φ = 13468653238544.

The previous prime is 20211321310109. The next prime is 20211321310127. The reversal of 20211321310113 is 31101312311202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20211321310113 - 2² = 20211321310109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20211321310113.

It is not an unprimeable number, because it can be changed into a prime (20211321310913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1390233570 + ... + 1390248107.

It is an arithmetic number, because the mean of its divisors is an integer number (3369943793736).

Almost surely, 2^{20211321310113} is an apocalyptic number.

It is an amenable number.

20211321310113 is a deficient number, since it is larger than the sum of its proper divisors (6748229039775).

20211321310113 is a wasteful number, since it uses less digits than its factorization.

20211321310113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780484103.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20211321310113 its reverse (31101312311202), we get a palindrome (51312633621315).

The spelling of 20211321310113 in words is "twenty trillion, two hundred eleven billion, three hundred twenty-one million, three hundred ten thousand, one hundred thirteen".