42111100011011 has 4 divisors (see below), whose sum is σ = 42296611465032. Its totient is φ = 41925588556992.

The previous prime is 42111100010989. The next prime is 42111100011023. The reversal of 42111100011011 is 11011000111124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42111100011011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42111100011041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92755726670 + ... + 92755727123.

It is an arithmetic number, because the mean of its divisors is an integer number (10574152866258).

Almost surely, 2^{42111100011011} is an apocalyptic number.

42111100011011 is a deficient number, since it is larger than the sum of its proper divisors (185511454021).

42111100011011 is a wasteful number, since it uses less digits than its factorization.

42111100011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185511454020.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 42111100011011 its reverse (11011000111124), we get a palindrome (53122100122135).

The spelling of 42111100011011 in words is "forty-two trillion, one hundred eleven billion, one hundred million, eleven thousand, eleven".