42111317 has 4 divisors (see below), whose sum is σ = 42176460. Its totient is φ = 42046176.

The previous prime is 42111313. The next prime is 42111341. The reversal of 42111317 is 71311124.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 24462916 = 4201^2 + 4946^2 .

It is a cyclic number.

It is not a de Polignac number, because 42111317 - 2² = 42111313 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 (42111313) 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, 31592 + ... + 32897.

It is an arithmetic number, because the mean of its divisors is an integer number (10544115).

Almost surely, 2^42111317 is an apocalyptic number.

It is an amenable number.

42111317 is a deficient number, since it is larger than the sum of its proper divisors (65143).

42111317 is an equidigital number, since it uses as much as digits as its factorization.

42111317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65142.

The product of its digits is 168, while the sum is 20.

The square root of 42111317 is about 6489.3233083273. The cubic root of 42111317 is about 347.9094894970.

The spelling of 42111317 in words is "forty-two million, one hundred eleven thousand, three hundred seventeen".