111111001111101 has 8 divisors (see below), whose sum is σ = 154589218937280. Its totient is φ = 70853392012832.

The previous prime is 111111001111051. The next prime is 111111001111133. The reversal of 111111001111101 is 101111100111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111111001111101 - 2¹³ = 111111001102909 is a prime.

It is a super-2 number, since 2×111111001111101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111001111141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805152181896 + ... + 805152182033.

It is an arithmetic number, because the mean of its divisors is an integer number (19323652367160).

Almost surely, 2^{111111001111101} is an apocalyptic number.

It is an amenable number.

111111001111101 is a deficient number, since it is larger than the sum of its proper divisors (43478217826179).

111111001111101 is a wasteful number, since it uses less digits than its factorization.

111111001111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610304363955.

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 111111001111101 its reverse (101111100111111), we get a palindrome (212222101222212).

It can be divided in two parts, 11111100111110 and 1, that added together give a palindrome (11111100111111).

The spelling of 111111001111101 in words is "one hundred eleven trillion, one hundred eleven billion, one million, one hundred eleven thousand, one hundred one".