42011255242 has 64 divisors (see below), whose sum is σ = 72942944256. Its totient is φ = 17967600000.

The previous prime is 42011255179. The next prime is 42011255257. The reversal of 42011255242 is 24255211024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42011255242.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8693767 + ... + 8698597.

It is an arithmetic number, because the mean of its divisors is an integer number (1139733504).

Almost surely, 2^42011255242 is an apocalyptic number.

42011255242 is a deficient number, since it is larger than the sum of its proper divisors (30931689014).

42011255242 is a wasteful number, since it uses less digits than its factorization.

42011255242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 42011255242 its reverse (24255211024), we get a palindrome (66266466266).

The spelling of 42011255242 in words is "forty-two billion, eleven million, two hundred fifty-five thousand, two hundred forty-two".