122102311123 has 16 divisors (see below), whose sum is σ = 136246652640. Its totient is φ = 108708897024.

The previous prime is 122102311117. The next prime is 122102311169. The reversal of 122102311123 is 321113201221.

It is a de Polignac number, because none of the positive numbers 2^k-122102311123 is a prime.

It is a super-2 number, since 2×122102311123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122102311123.

It is not an unprimeable number, because it can be changed into a prime (122102311103) 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, 1461186 + ... + 1542487.

It is an arithmetic number, because the mean of its divisors is an integer number (8515415790).

Almost surely, 2^122102311123 is an apocalyptic number.

122102311123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122102311123 is a deficient number, since it is larger than the sum of its proper divisors (14144341517).

122102311123 is a wasteful number, since it uses less digits than its factorization.

122102311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003798.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122102311123 its reverse (321113201221), we get a palindrome (443215512344).

The spelling of 122102311123 in words is "one hundred twenty-two billion, one hundred two million, three hundred eleven thousand, one hundred twenty-three".