122311312321111 has 16 divisors (see below), whose sum is σ = 123728118696000. Its totient is φ = 120899124580608.

The previous prime is 122311312321109. The next prime is 122311312321139. The reversal of 122311312321111 is 111123213113221.

It is a cyclic number.

It is not a de Polignac number, because 122311312321111 - 2¹ = 122311312321109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122311312021111) 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, 119313745 + ... + 120334501.

It is an arithmetic number, because the mean of its divisors is an integer number (7733007418500).

Almost surely, 2^{122311312321111} is an apocalyptic number.

122311312321111 is a deficient number, since it is larger than the sum of its proper divisors (1416806374889).

122311312321111 is a wasteful number, since it uses less digits than its factorization.

122311312321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023018.

The product of its digits is 432, while the sum is 25.

Adding to 122311312321111 its reverse (111123213113221), we get a palindrome (233434525434332).

The spelling of 122311312321111 in words is "one hundred twenty-two trillion, three hundred eleven billion, three hundred twelve million, three hundred twenty-one thousand, one hundred eleven".