42004033111 has 4 divisors (see below), whose sum is σ = 42004629112. Its totient is φ = 42003437112.

The previous prime is 42004033073. The next prime is 42004033121. The reversal of 42004033111 is 11133040024.

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

It is a cyclic number.

It is not a de Polignac number, because 42004033111 - 2²¹ = 42001935959 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 (42004033121) 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, 175500 + ... + 338833.

It is an arithmetic number, because the mean of its divisors is an integer number (10501157278).

Almost surely, 2^42004033111 is an apocalyptic number.

42004033111 is a deficient number, since it is larger than the sum of its proper divisors (596001).

42004033111 is an equidigital number, since it uses as much as digits as its factorization.

42004033111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596000.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 42004033111 its reverse (11133040024), we get a palindrome (53137073135).

The spelling of 42004033111 in words is "forty-two billion, four million, thirty-three thousand, one hundred eleven".