42118011 has 18 divisors (see below), whose sum is σ = 65879268. Its totient is φ = 25917840.

The previous prime is 42117997. The next prime is 42118019. The reversal of 42118011 is 11081124.

It is not a de Polignac number, because 42118011 - 2¹⁷ = 41986939 is a prime.

It is a super-2 number, since 2×42118011² = 3547853701192242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42118019) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12325 + ... + 15366.

Almost surely, 2^42118011 is an apocalyptic number.

42118011 is a deficient number, since it is larger than the sum of its proper divisors (23761257).

42118011 is a wasteful number, since it uses less digits than its factorization.

42118011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27723 (or 27707 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 42118011 is about 6489.8390580969. The cubic root of 42118011 is about 347.9279230433.

Adding to 42118011 its reverse (11081124), we get a palindrome (53199135).

The spelling of 42118011 in words is "forty-two million, one hundred eighteen thousand, eleven".