111200661011 has 8 divisors (see below), whose sum is σ = 127694539200. Its totient is φ = 95770904040.

The previous prime is 111200660983. The next prime is 111200661023. The reversal of 111200661011 is 110166002111.

It is a happy number.

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 111200661011 - 2¹⁸ = 111200398867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111200661311) 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, 266030081 + ... + 266030498.

It is an arithmetic number, because the mean of its divisors is an integer number (15961817400).

Almost surely, 2^111200661011 is an apocalyptic number.

111200661011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111200661011 is a deficient number, since it is larger than the sum of its proper divisors (16493878189).

111200661011 is a wasteful number, since it uses less digits than its factorization.

111200661011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532060609.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 111200661011 its reverse (110166002111), we get a palindrome (221366663122).

The spelling of 111200661011 in words is "one hundred eleven billion, two hundred million, six hundred sixty-one thousand, eleven".