611111111101 has 8 divisors (see below), whose sum is σ = 616475530944. Its totient is φ = 605764024800.

The previous prime is 611111111099. The next prime is 611111111113. The reversal of 611111111101 is 101111111116.

611111111101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 611111111101 - 2¹ = 611111111099 is a prime.

It is a super-2 number, since 2×611111111101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611111181101) 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, 4262560 + ... + 4403593.

It is an arithmetic number, because the mean of its divisors is an integer number (77059441368).

Almost surely, 2^611111111101 is an apocalyptic number.

It is an amenable number.

611111111101 is a deficient number, since it is larger than the sum of its proper divisors (5364419843).

611111111101 is a wasteful number, since it uses less digits than its factorization.

611111111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8666771.

The product of its (nonzero) digits is 6, while the sum is 16.

Adding to 611111111101 its reverse (101111111116), we get a palindrome (712222222217).

The spelling of 611111111101 in words is "six hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred one".