10111100011111 has 4 divisors (see below), whose sum is σ = 11030290921224. Its totient is φ = 9191909101000.

The previous prime is 10111100011109. The next prime is 10111100011127. The reversal of 10111100011111 is 11111000111101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10111100011111 - 2¹ = 10111100011109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111100011151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459595455040 + ... + 459595455061.

It is an arithmetic number, because the mean of its divisors is an integer number (2757572730306).

Almost surely, 2^{10111100011111} is an apocalyptic number.

10111100011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10111100011111 is a deficient number, since it is larger than the sum of its proper divisors (919190910113).

10111100011111 is an equidigital number, since it uses as much as digits as its factorization.

10111100011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919190910112.

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

Adding to 10111100011111 its reverse (11111000111101), we get a palindrome (21222100122212).

The spelling of 10111100011111 in words is "ten trillion, one hundred eleven billion, one hundred million, eleven thousand, one hundred eleven".