4011111611111 has 32 divisors (see below), whose sum is σ = 4536525643776. Its totient is φ = 3515566320000.

The previous prime is 4011111611107. The next prime is 4011111611119. The reversal of 4011111611111 is 1111161111104.

It is a cyclic number.

It is not a de Polignac number, because 4011111611111 - 2² = 4011111611107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011111611119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6789461 + ... + 7356561.

It is an arithmetic number, because the mean of its divisors is an integer number (141766426368).

Almost surely, 2^{4011111611111} is an apocalyptic number.

4011111611111 is a deficient number, since it is larger than the sum of its proper divisors (525414032665).

4011111611111 is a wasteful number, since it uses less digits than its factorization.

4011111611111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567383.

The product of its (nonzero) digits is 24, while the sum is 20.

Adding to 4011111611111 its reverse (1111161111104), we get a palindrome (5122272722215).

The spelling of 4011111611111 in words is "four trillion, eleven billion, one hundred eleven million, six hundred eleven thousand, one hundred eleven".