42011013 has 16 divisors (see below), whose sum is σ = 61286400. Its totient is φ = 25386480.

The previous prime is 42010993. The next prime is 42011017. The reversal of 42011013 is 31011024.

It is a happy number.

It is not a de Polignac number, because 42011013 - 2²⁰ = 40962437 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42011013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42011017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10828 + ... + 14186.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^42011013 is an apocalyptic number.

It is an amenable number.

42011013 is a deficient number, since it is larger than the sum of its proper divisors (19275387).

42011013 is a wasteful number, since it uses less digits than its factorization.

42011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 42011013 is about 6481.5903141127. The cubic root of 42011013 is about 347.6330439616.

Adding to 42011013 its reverse (31011024), we get a palindrome (73022037).

The spelling of 42011013 in words is "forty-two million, eleven thousand, thirteen".