122321111131 has 4 divisors (see below), whose sum is σ = 122401428552. Its totient is φ = 122240793712.

The previous prime is 122321111093. The next prime is 122321111153. The reversal of 122321111131 is 131111123221.

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

It is a cyclic number.

It is not a de Polignac number, because 122321111131 - 2⁹ = 122321110619 is a prime.

It is a super-2 number, since 2×122321111131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122321111099 and 122321111108.

It is not an unprimeable number, because it can be changed into a prime (122321111191) 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, 40156426 + ... + 40159471.

It is an arithmetic number, because the mean of its divisors is an integer number (30600357138).

Almost surely, 2^122321111131 is an apocalyptic number.

122321111131 is a deficient number, since it is larger than the sum of its proper divisors (80317421).

122321111131 is an equidigital number, since it uses as much as digits as its factorization.

122321111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80317420.

The product of its digits is 72, while the sum is 19.

Adding to 122321111131 its reverse (131111123221), we get a palindrome (253432234352).

The spelling of 122321111131 in words is "one hundred twenty-two billion, three hundred twenty-one million, one hundred eleven thousand, one hundred thirty-one".