111110101010001 has 48 divisors (see below), whose sum is σ = 166571991016704. Its totient is φ = 71311909842432.

The previous prime is 111110101009991. The next prime is 111110101010023. The reversal of 111110101010001 is 100010101011111.

It is not a de Polignac number, because 111110101010001 - 2¹¹ = 111110101007953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111110101010071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19573080 + ... + 24603366.

It is an arithmetic number, because the mean of its divisors is an integer number (3470249812848).

Almost surely, 2^{111110101010001} is an apocalyptic number.

It is an amenable number.

111110101010001 is a deficient number, since it is larger than the sum of its proper divisors (55461890006703).

111110101010001 is a wasteful number, since it uses less digits than its factorization.

111110101010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031030 (or 5031027 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111110101010001 its reverse (100010101011111), we get a palindrome (211120202021112).

The spelling of 111110101010001 in words is "one hundred eleven trillion, one hundred ten billion, one hundred one million, ten thousand, one".