42312443133 has 4 divisors (see below), whose sum is σ = 56416590848. Its totient is φ = 28208295420.

The previous prime is 42312443123. The next prime is 42312443137. The reversal of 42312443133 is 33134421324.

It is a happy number.

42312443133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42312443133 - 2⁸ = 42312442877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42312443133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312443137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7052073853 + ... + 7052073858.

It is an arithmetic number, because the mean of its divisors is an integer number (14104147712).

Almost surely, 2^42312443133 is an apocalyptic number.

It is an amenable number.

42312443133 is a deficient number, since it is larger than the sum of its proper divisors (14104147715).

42312443133 is a wasteful number, since it uses less digits than its factorization.

42312443133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104147714.

The product of its digits is 20736, while the sum is 30.

Adding to 42312443133 its reverse (33134421324), we get a palindrome (75446864457).

The spelling of 42312443133 in words is "forty-two billion, three hundred twelve million, four hundred forty-three thousand, one hundred thirty-three".