111110111010001 has 16 divisors (see below), whose sum is σ = 114385282115328. Its totient is φ = 107862869289600.

The previous prime is 111110111009869. The next prime is 111110111010109. The reversal of 111110111010001 is 100010111011111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111110111010001 - 2⁴¹ = 108911087754449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111110111010001.

It is not an unprimeable number, because it can be changed into a prime (111110111011001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2391111 + ... + 15097603.

It is an arithmetic number, because the mean of its divisors is an integer number (7149080132208).

Almost surely, 2^{111110111010001} is an apocalyptic number.

It is an amenable number.

111110111010001 is a deficient number, since it is larger than the sum of its proper divisors (3275171105327).

111110111010001 is a wasteful number, since it uses less digits than its factorization.

111110111010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707592.

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

Adding to 111110111010001 its reverse (100010111011111), we get a palindrome (211120222021112).

It can be divided in two parts, 1111101110 and 10001, that added together give a palindrome (1111111111).

The spelling of 111110111010001 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, ten thousand, one".