111220132311 has 6 divisors (see below), whose sum is σ = 160651302240. Its totient is φ = 74146754868.

The previous prime is 111220132307. The next prime is 111220132319. The reversal of 111220132311 is 113231022111.

111220132311 is a `hidden beast` number, since 1 + 1 + 1 + 220 + 132 + 311 = 666.

It is not a de Polignac number, because 111220132311 - 2² = 111220132307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220132319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6178896231 + ... + 6178896248.

It is an arithmetic number, because the mean of its divisors is an integer number (26775217040).

Almost surely, 2^111220132311 is an apocalyptic number.

111220132311 is a deficient number, since it is larger than the sum of its proper divisors (49431169929).

111220132311 is a wasteful number, since it uses less digits than its factorization.

111220132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12357792485 (or 12357792482 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111220132311 its reverse (113231022111), we get a palindrome (224451154422).

The spelling of 111220132311 in words is "one hundred eleven billion, two hundred twenty million, one hundred thirty-two thousand, three hundred eleven".