111101011993 has 8 divisors (see below), whose sum is σ = 113769076608. Its totient is φ = 108445623024.

The previous prime is 111101011949. The next prime is 111101012047. The reversal of 111101011993 is 399110101111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111101011993 - 2¹³ = 111101003801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101012993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3151171 + ... + 3186232.

It is an arithmetic number, because the mean of its divisors is an integer number (14221134576).

Almost surely, 2^111101011993 is an apocalyptic number.

It is an amenable number.

111101011993 is a deficient number, since it is larger than the sum of its proper divisors (2668064615).

111101011993 is an equidigital number, since it uses as much as digits as its factorization.

111101011993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6337823.

The product of its (nonzero) digits is 243, while the sum is 28.

The spelling of 111101011993 in words is "one hundred eleven billion, one hundred one million, eleven thousand, nine hundred ninety-three".