42023111 has 4 divisors (see below), whose sum is σ = 45255672. Its totient is φ = 38790552.

The previous prime is 42023101. The next prime is 42023119. The reversal of 42023111 is 11132024.

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 42023111 - 2²² = 37828807 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 (42023119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616261 + ... + 1616286.

It is an arithmetic number, because the mean of its divisors is an integer number (11313918).

Almost surely, 2^42023111 is an apocalyptic number.

42023111 is a deficient number, since it is larger than the sum of its proper divisors (3232561).

42023111 is a wasteful number, since it uses less digits than its factorization.

42023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232560.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 42023111 is about 6482.5235055494. The cubic root of 42023111 is about 347.6664102992. Note that the first 3 decimals are identical.

Adding to 42023111 its reverse (11132024), we get a palindrome (53155135).

The spelling of 42023111 in words is "forty-two million, twenty-three thousand, one hundred eleven".