111203323213122 has 192 divisors, whose sum is σ = 299135195251200. Its totient is φ = 30507492425760.

The previous prime is 111203323213117. The next prime is 111203323213141. The reversal of 111203323213122 is 221312323302111.

111203323213122 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 0 + 3 + 323 + 21 + 312 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1569904 + ... + 14995707.

It is an arithmetic number, because the mean of its divisors is an integer number (1557995808600).

Almost surely, 2^{111203323213122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111203323213122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149567597625600).

111203323213122 is an abundant number, since it is smaller than the sum of its proper divisors (187931872038078).

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

111203323213122 is a wasteful number, since it uses less digits than its factorization.

111203323213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16565738 (or 16565725 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 111203323213122 its reverse (221312323302111), we get a palindrome (332515646515233).

The spelling of 111203323213122 in words is "one hundred eleven trillion, two hundred three billion, three hundred twenty-three million, two hundred thirteen thousand, one hundred twenty-two".