42242302031 has 4 divisors (see below), whose sum is σ = 43224681192. Its totient is φ = 41259922872.

The previous prime is 42242301991. The next prime is 42242302033. The reversal of 42242302031 is 13020324224.

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-42242302031 is a prime.

It is a super-2 number, since 2×42242302031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42242301988 and 42242302006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242302033) 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, 491189516 + ... + 491189601.

It is an arithmetic number, because the mean of its divisors is an integer number (10806170298).

Almost surely, 2^42242302031 is an apocalyptic number.

42242302031 is a deficient number, since it is larger than the sum of its proper divisors (982379161).

42242302031 is an equidigital number, since it uses as much as digits as its factorization.

42242302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982379160.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 42242302031 its reverse (13020324224), we get a palindrome (55262626255).

The spelling of 42242302031 in words is "forty-two billion, two hundred forty-two million, three hundred two thousand, thirty-one".