42042100111 has 8 divisors (see below), whose sum is σ = 45870822864. Its totient is φ = 38214496320.

The previous prime is 42042100103. The next prime is 42042100123. The reversal of 42042100111 is 11100124024.

It is a happy number.

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

It is not a de Polignac number, because 42042100111 - 2³ = 42042100103 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 (42042100151) 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, 200190 + ... + 352363.

It is an arithmetic number, because the mean of its divisors is an integer number (5733852858).

Almost surely, 2^42042100111 is an apocalyptic number.

42042100111 is a deficient number, since it is larger than the sum of its proper divisors (3828722753).

42042100111 is a wasteful number, since it uses less digits than its factorization.

42042100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559481.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 42042100111 its reverse (11100124024), we get a palindrome (53142224135).

The spelling of 42042100111 in words is "forty-two billion, forty-two million, one hundred thousand, one hundred eleven".