113122221101312 has 18 divisors (see below), whose sum is σ = 225802558526958. Its totient is φ = 56561110550528.

The previous prime is 113122221101299. The next prime is 113122221101423. The reversal of 113122221101312 is 213101122221311.

It can be written as a sum of positive squares in only one way, i.e., 61813308276736 + 51308912824576 = 7862144^2 + 7163024^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220941837833 + ... + 220941838344.

It is an arithmetic number, because the mean of its divisors is an integer number (12544586584831).

Almost surely, 2^{113122221101312} is an apocalyptic number.

It is an amenable number.

113122221101312 is a deficient number, since it is larger than the sum of its proper divisors (112680337425646).

113122221101312 is an frugal number, since it uses more digits than its factorization.

113122221101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441883676193 (or 441883676179 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 113122221101312 its reverse (213101122221311), we get a palindrome (326223343322623).

The spelling of 113122221101312 in words is "one hundred thirteen trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, three hundred twelve".