10001111101111 has 4 divisors (see below), whose sum is σ = 10770427339672. Its totient is φ = 9231794862552.

The previous prime is 10001111101099. The next prime is 10001111101133. The reversal of 10001111101111 is 11110111110001.

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 10001111101111 - 2²⁷ = 10000976883383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001111101211) 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, 384658119261 + ... + 384658119286.

It is an arithmetic number, because the mean of its divisors is an integer number (2692606834918).

Almost surely, 2^{10001111101111} is an apocalyptic number.

10001111101111 is a deficient number, since it is larger than the sum of its proper divisors (769316238561).

10001111101111 is an equidigital number, since it uses as much as digits as its factorization.

10001111101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769316238560.

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

Adding to 10001111101111 its reverse (11110111110001), we get a palindrome (21111222211112).

It can be divided in two parts, 10001 and 111101111, that multiplied together give a palindrome (1111122211111).

The spelling of 10001111101111 in words is "ten trillion, one billion, one hundred eleven million, one hundred one thousand, one hundred eleven".