42012739103 has 4 divisors (see below), whose sum is σ = 42017756760. Its totient is φ = 42007721448.

The previous prime is 42012739061. The next prime is 42012739117. The reversal of 42012739103 is 30193721024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42012739103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42012739103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42012739163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496248 + ... + 2513021.

It is an arithmetic number, because the mean of its divisors is an integer number (10504439190).

Almost surely, 2^42012739103 is an apocalyptic number.

42012739103 is a deficient number, since it is larger than the sum of its proper divisors (5017657).

42012739103 is an equidigital number, since it uses as much as digits as its factorization.

42012739103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017656.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 42012739103 in words is "forty-two billion, twelve million, seven hundred thirty-nine thousand, one hundred three".