111311241103986 has 192 divisors, whose sum is σ = 299551365803520. Its totient is φ = 27190394461440.

The previous prime is 111311241103961. The next prime is 111311241103987. The reversal of 111311241103986 is 689301142113111.

It is a happy number.

It is a super-2 number, since 2×111311241103986² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (111311241103987) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1806681 + ... + 15029523.

It is an arithmetic number, because the mean of its divisors is an integer number (1560163363560).

Almost surely, 2^{111311241103986} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111311241103986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149775682901760).

111311241103986 is an abundant number, since it is smaller than the sum of its proper divisors (188240124699534).

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

111311241103986 is a wasteful number, since it uses less digits than its factorization.

111311241103986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13223029 (or 13223022 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 111311241103986 in words is "one hundred eleven trillion, three hundred eleven billion, two hundred forty-one million, one hundred three thousand, nine hundred eighty-six".