111001000100011 has 32 divisors (see below), whose sum is σ = 134018965352448. Its totient is φ = 89917778401920.

The previous prime is 111001000099999. The next prime is 111001000100027. The reversal of 111001000100011 is 110001000100111.

It is a happy number.

It is not a de Polignac number, because 111001000100011 - 2²¹ = 111000998002859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111001000099967 and 111001000100003.

It is not an unprimeable number, because it can be changed into a prime (111001000100041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53217885 + ... + 55264321.

It is an arithmetic number, because the mean of its divisors is an integer number (4188092667264).

Almost surely, 2^{111001000100011} is an apocalyptic number.

111001000100011 is a deficient number, since it is larger than the sum of its proper divisors (23017965252437).

111001000100011 is a wasteful number, since it uses less digits than its factorization.

111001000100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052331.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111001000100011 its reverse (110001000100111), we get a palindrome (221002000200122).

The spelling of 111001000100011 in words is "one hundred eleven trillion, one billion, one hundred thousand, eleven".