111011120200120 has 64 divisors (see below), whose sum is σ = 285641452152000. Its totient is φ = 38036384040960.

The previous prime is 111011120200111. The next prime is 111011120200129. The reversal of 111011120200120 is 21002021110111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111011120200111) and next prime (111011120200129).

It is a self number, because there is not a number n which added to its sum of digits gives 111011120200120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011120200129) 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, 127541841 + ... + 128409280.

It is an arithmetic number, because the mean of its divisors is an integer number (4463147689875).

Almost surely, 2^{111011120200120} is an apocalyptic number.

111011120200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011120200120 is an abundant number, since it is smaller than the sum of its proper divisors (174630331951880).

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

111011120200120 is a wasteful number, since it uses less digits than its factorization.

111011120200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255952688 (or 255952684 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111011120200120 its reverse (21002021110111), we get a palindrome (132013141310231).

Subtracting from 111011120200120 its reverse (21002021110111), we obtain a palindrome (90009099090009).

The spelling of 111011120200120 in words is "one hundred eleven trillion, eleven billion, one hundred twenty million, two hundred thousand, one hundred twenty".