100000001111111 has 4 divisors (see below), whose sum is σ = 100002461963352. Its totient is φ = 99997540258872.

The previous prime is 100000001111093. The next prime is 100000001111137. The reversal of 100000001111111 is 111111100000001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000001111111 is a prime.

It is a Duffinian number.

100000001111111 is a modest number, since divided by 1111111 gives 1 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000001111411) 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, 1230365165 + ... + 1230446438.

It is an arithmetic number, because the mean of its divisors is an integer number (25000615490838).

Almost surely, 2^{100000001111111} is an apocalyptic number.

100000001111111 is a deficient number, since it is larger than the sum of its proper divisors (2460852241).

100000001111111 is an equidigital number, since it uses as much as digits as its factorization.

100000001111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460852240.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 100000001111111 its reverse (111111100000001), we get a palindrome (211111101111112).

It can be divided in two parts, 100000001 and 111111, that multiplied together give a palindrome (11111100111111).

The spelling of 100000001111111 in words is "one hundred trillion, one million, one hundred eleven thousand, one hundred eleven".