111101111001011 has 8 divisors (see below), whose sum is σ = 112349689122240. Its totient is φ = 109852538458432.

The previous prime is 111101111001007. The next prime is 111101111001107. The reversal of 111101111001011 is 110100111101111.

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 111101111001011 - 2² = 111101111001007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111101111000983 and 111101111001001.

It is not an unprimeable number, because it can be changed into a prime (111101111003011) 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, 48722966 + ... + 50952228.

It is an arithmetic number, because the mean of its divisors is an integer number (14043711140280).

Almost surely, 2^{111101111001011} is an apocalyptic number.

111101111001011 is a deficient number, since it is larger than the sum of its proper divisors (1248578121229).

111101111001011 is an equidigital number, since it uses as much as digits as its factorization.

111101111001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789325.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 111101111001011 its reverse (110100111101111), we get a palindrome (221201222102122).

The spelling of 111101111001011 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, one thousand, eleven".