122313123111 has 4 divisors (see below), whose sum is σ = 163084164152. Its totient is φ = 81542082072.

The previous prime is 122313123109. The next prime is 122313123113. The reversal of 122313123111 is 111321313221.

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

It is an interprime number because it is at equal distance from previous prime (122313123109) and next prime (122313123113).

It is not a de Polignac number, because 122313123111 - 2¹ = 122313123109 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 (122313123113) 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, 20385520516 + ... + 20385520521.

It is an arithmetic number, because the mean of its divisors is an integer number (40771041038).

Almost surely, 2^122313123111 is an apocalyptic number.

122313123111 is a deficient number, since it is larger than the sum of its proper divisors (40771041041).

122313123111 is an equidigital number, since it uses as much as digits as its factorization.

122313123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40771041040.

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

Adding to 122313123111 its reverse (111321313221), we get a palindrome (233634436332).

The spelling of 122313123111 in words is "one hundred twenty-two billion, three hundred thirteen million, one hundred twenty-three thousand, one hundred eleven".