122320113312 has 96 divisors (see below), whose sum is σ = 325256988672. Its totient is φ = 40246493184.

The previous prime is 122320113301. The next prime is 122320113323. The reversal of 122320113312 is 213311023221.

It is an interprime number because it is at equal distance from previous prime (122320113301) and next prime (122320113323).

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3549348 + ... + 3583644.

It is an arithmetic number, because the mean of its divisors is an integer number (3388093632).

Almost surely, 2^122320113312 is an apocalyptic number.

122320113312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122320113312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162628494336).

122320113312 is an abundant number, since it is smaller than the sum of its proper divisors (202936875360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122320113312 is a wasteful number, since it uses less digits than its factorization.

122320113312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34790 (or 34782 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 122320113312 its reverse (213311023221), we get a palindrome (335631136533).

Subtracting 122320113312 from its reverse (213311023221), we obtain a palindrome (90990909909).

The spelling of 122320113312 in words is "one hundred twenty-two billion, three hundred twenty million, one hundred thirteen thousand, three hundred twelve".