42112003 has 4 divisors (see below), whose sum is σ = 42344848. Its totient is φ = 41879160.

The previous prime is 42112001. The next prime is 42112061. The reversal of 42112003 is 30021124.

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 42112003 - 2¹ = 42112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42112001) 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, 116151 + ... + 116512.

It is an arithmetic number, because the mean of its divisors is an integer number (10586212).

Almost surely, 2^42112003 is an apocalyptic number.

42112003 is a deficient number, since it is larger than the sum of its proper divisors (232845).

42112003 is a wasteful number, since it uses less digits than its factorization.

42112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232844.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42112003 is about 6489.3761641625. The cubic root of 42112003 is about 347.9113786536.

Adding to 42112003 its reverse (30021124), we get a palindrome (72133127).

The spelling of 42112003 in words is "forty-two million, one hundred twelve thousand, three".