122103311312 has 20 divisors (see below), whose sum is σ = 237411129120. Its totient is φ = 60835923168.

The previous prime is 122103311299. The next prime is 122103311327. The reversal of 122103311312 is 213113301221.

It is a happy number.

It is a super-2 number, since 2×122103311312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13478612 + ... + 13487667.

It is an arithmetic number, because the mean of its divisors is an integer number (11870556456).

Almost surely, 2^122103311312 is an apocalyptic number.

It is an amenable number.

122103311312 is a deficient number, since it is larger than the sum of its proper divisors (115307817808).

122103311312 is a wasteful number, since it uses less digits than its factorization.

122103311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26966570 (or 26966564 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 122103311312 its reverse (213113301221), we get a palindrome (335216612533).

The spelling of 122103311312 in words is "one hundred twenty-two billion, one hundred three million, three hundred eleven thousand, three hundred twelve".