42013125023 has 4 divisors (see below), whose sum is σ = 42051776640. Its totient is φ = 41974473408.

The previous prime is 42013125013. The next prime is 42013125031. The reversal of 42013125023 is 32052131024.

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-42013125023 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 42013125023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42013125013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19324178 + ... + 19326351.

It is an arithmetic number, because the mean of its divisors is an integer number (10512944160).

Almost surely, 2^42013125023 is an apocalyptic number.

42013125023 is a deficient number, since it is larger than the sum of its proper divisors (38651617).

42013125023 is a wasteful number, since it uses less digits than its factorization.

42013125023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38651616.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 42013125023 its reverse (32052131024), we get a palindrome (74065256047).

The spelling of 42013125023 in words is "forty-two billion, thirteen million, one hundred twenty-five thousand, twenty-three".