111101121021011 has 8 divisors (see below), whose sum is σ = 121215088867248. Its totient is φ = 100989464164000.

The previous prime is 111101121020993. The next prime is 111101121021061. The reversal of 111101121021011 is 110120121101111.

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 111101121021011 - 2⁴² = 106703074509907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101121021061) 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, 577646780 + ... + 577839081.

It is an arithmetic number, because the mean of its divisors is an integer number (15151886108406).

Almost surely, 2^{111101121021011} is an apocalyptic number.

111101121021011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111101121021011 is a deficient number, since it is larger than the sum of its proper divisors (10113967846237).

111101121021011 is a wasteful number, since it uses less digits than its factorization.

111101121021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155494613.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 111101121021011 its reverse (110120121101111), we get a palindrome (221221242122122).

The spelling of 111101121021011 in words is "one hundred eleven trillion, one hundred one billion, one hundred twenty-one million, twenty-one thousand, eleven".