21122323311113 has 16 divisors (see below), whose sum is σ = 21678143443200. Its totient is φ = 20570974636800.

The previous prime is 21122323311109. The next prime is 21122323311169. The reversal of 21122323311113 is 31111332322112.

It is a cyclic number.

It is not a de Polignac number, because 21122323311113 - 2² = 21122323311109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21122323316113) 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 15 ways as a sum of consecutive naturals, for example, 51970913 + ... + 52375761.

It is an arithmetic number, because the mean of its divisors is an integer number (1354883965200).

Almost surely, 2^{21122323311113} is an apocalyptic number.

It is an amenable number.

21122323311113 is a deficient number, since it is larger than the sum of its proper divisors (555820132087).

21122323311113 is a wasteful number, since it uses less digits than its factorization.

21122323311113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410368.

The product of its digits is 1296, while the sum is 26.

Adding to 21122323311113 its reverse (31111332322112), we get a palindrome (52233655633225).

The spelling of 21122323311113 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred twenty-three million, three hundred eleven thousand, one hundred thirteen".