42013420423403 has 16 divisors (see below), whose sum is σ = 49423626794976. Its totient is φ = 35209443709440.

The previous prime is 42013420423399. The next prime is 42013420423427. The reversal of 42013420423403 is 30432402431024.

It is not a de Polignac number, because 42013420423403 - 2² = 42013420423399 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 42013420423403.

It is not an unprimeable number, because it can be changed into a prime (42013420423493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193947326 + ... + 194163827.

It is an arithmetic number, because the mean of its divisors is an integer number (3088976674686).

Almost surely, 2^{42013420423403} is an apocalyptic number.

42013420423403 is a deficient number, since it is larger than the sum of its proper divisors (7410206371573).

42013420423403 is a wasteful number, since it uses less digits than its factorization.

42013420423403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388111934.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 42013420423403 its reverse (30432402431024), we get a palindrome (72445822854427).

The spelling of 42013420423403 in words is "forty-two trillion, thirteen billion, four hundred twenty million, four hundred twenty-three thousand, four hundred three".