42180011 has 4 divisors (see below), whose sum is σ = 42193272. Its totient is φ = 42166752.

The previous prime is 42179927. The next prime is 42180013. The reversal of 42180011 is 11008124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42180011 - 2²² = 37985707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42180013) 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, 1316 + ... + 9278.

It is an arithmetic number, because the mean of its divisors is an integer number (10548318).

Almost surely, 2^42180011 is an apocalyptic number.

42180011 is a deficient number, since it is larger than the sum of its proper divisors (13261).

42180011 is an equidigital number, since it uses as much as digits as its factorization.

42180011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13260.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 42180011 is about 6494.6139993074. The cubic root of 42180011 is about 348.0985622745.

Adding to 42180011 its reverse (11008124), we get a palindrome (53188135).

The spelling of 42180011 in words is "forty-two million, one hundred eighty thousand, eleven".