42012250403 has 4 divisors (see below), whose sum is σ = 42022523928. Its totient is φ = 42001976880.

The previous prime is 42012250391. The next prime is 42012250421. The reversal of 42012250403 is 30405221024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42012250403 - 2¹⁶ = 42012184867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42012250453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5130626 + ... + 5138807.

It is an arithmetic number, because the mean of its divisors is an integer number (10505630982).

Almost surely, 2^42012250403 is an apocalyptic number.

42012250403 is a deficient number, since it is larger than the sum of its proper divisors (10273525).

42012250403 is a wasteful number, since it uses less digits than its factorization.

42012250403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10273524.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 42012250403 its reverse (30405221024), we get a palindrome (72417471427).

The spelling of 42012250403 in words is "forty-two billion, twelve million, two hundred fifty thousand, four hundred three".