42442130231 has 2 divisors, whose sum is σ = 42442130232. Its totient is φ = 42442130230.

The previous prime is 42442130197. The next prime is 42442130239. The reversal of 42442130231 is 13203124424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42442130231 - 2¹⁰ = 42442129207 is a prime.

It is a super-2 number, since 2×42442130231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42442130231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42442130239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221065115 + 21221065116.

It is an arithmetic number, because the mean of its divisors is an integer number (21221065116).

Almost surely, 2^42442130231 is an apocalyptic number.

42442130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442130231 is an equidigital number, since it uses as much as digits as its factorization.

42442130231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42442130231 its reverse (13203124424), we get a palindrome (55645254655).

The spelling of 42442130231 in words is "forty-two billion, four hundred forty-two million, one hundred thirty thousand, two hundred thirty-one".