42012103105 has 64 divisors (see below), whose sum is σ = 59450130432. Its totient is φ = 27909826560.

The previous prime is 42012103103. The next prime is 42012103121. The reversal of 42012103105 is 50130121024.

It is not a de Polignac number, because 42012103105 - 2¹ = 42012103103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42012103103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43445332 + ... + 43446298.

It is an arithmetic number, because the mean of its divisors is an integer number (928908288).

Almost surely, 2^42012103105 is an apocalyptic number.

It is an amenable number.

42012103105 is a deficient number, since it is larger than the sum of its proper divisors (17438027327).

42012103105 is a wasteful number, since it uses less digits than its factorization.

42012103105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 42012103105 its reverse (50130121024), we get a palindrome (92142224129).

The spelling of 42012103105 in words is "forty-two billion, twelve million, one hundred three thousand, one hundred five".