42044241331 has 2 divisors, whose sum is σ = 42044241332. Its totient is φ = 42044241330.

The previous prime is 42044241329. The next prime is 42044241359. The reversal of 42044241331 is 13314244024.

It is an a-pointer prime, because the next prime (42044241359) can be obtained adding 42044241331 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42044241331 - 2¹ = 42044241329 is a prime.

It is a super-2 number, since 2×42044241331² (a number of 22 digits) contains 22 as substring.

Together with 42044241329, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42044241331.

It is not a weakly prime, because it can be changed into another prime (42044241301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21022120665 + 21022120666.

It is an arithmetic number, because the mean of its divisors is an integer number (21022120666).

Almost surely, 2^42044241331 is an apocalyptic number.

42044241331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42044241331 is an equidigital number, since it uses as much as digits as its factorization.

42044241331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42044241331 its reverse (13314244024), we get a palindrome (55358485355).

The spelling of 42044241331 in words is "forty-two billion, forty-four million, two hundred forty-one thousand, three hundred thirty-one".