11111001011110 has 128 divisors (see below), whose sum is σ = 27154600704000. Its totient is φ = 3160852485120.

The previous prime is 11111001011059. The next prime is 11111001011111. The reversal of 11111001011110 is 1111010011111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111001011111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5345010 + ... + 7126789.

It is an arithmetic number, because the mean of its divisors is an integer number (212145318000).

Almost surely, 2^{11111001011110} is an apocalyptic number.

11111001011110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111001011110 is an abundant number, since it is smaller than the sum of its proper divisors (16043599692890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111001011110 is a wasteful number, since it uses less digits than its factorization.

11111001011110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12471926.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11111001011110 its reverse (1111010011111), we get a palindrome (12222011022221).

Subtracting from 11111001011110 its reverse (1111010011111), we obtain a palindrome (9999990999999).

The spelling of 11111001011110 in words is "eleven trillion, one hundred eleven billion, one million, eleven thousand, one hundred ten".