111010100011011 has 16 divisors (see below), whose sum is σ = 167562415113120. Its totient is φ = 72610379880480.

The previous prime is 111010100011009. The next prime is 111010100011061. The reversal of 111010100011011 is 110110001010111.

It is not a de Polignac number, because 111010100011011 - 2¹ = 111010100011009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111010100010984 and 111010100011002.

It is not an unprimeable number, because it can be changed into a prime (111010100011061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38787594660 + ... + 38787597521.

It is an arithmetic number, because the mean of its divisors is an integer number (10472650944570).

Almost surely, 2^{111010100011011} is an apocalyptic number.

111010100011011 is a deficient number, since it is larger than the sum of its proper divisors (56552315102109).

111010100011011 is an equidigital number, since it uses as much as digits as its factorization.

111010100011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77575192243 (or 77575192237 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111010100011011 its reverse (110110001010111), we get a palindrome (221120101021122).

The spelling of 111010100011011 in words is "one hundred eleven trillion, ten billion, one hundred million, eleven thousand, eleven".