42322420331 has 2 divisors, whose sum is σ = 42322420332. Its totient is φ = 42322420330.

The previous prime is 42322420303. The next prime is 42322420339. The reversal of 42322420331 is 13302422324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42322420331 is a prime.

It is a super-2 number, since 2×42322420331² (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 42322420331.

It is not a weakly prime, because it can be changed into another prime (42322420339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21161210165 + 21161210166.

It is an arithmetic number, because the mean of its divisors is an integer number (21161210166).

Almost surely, 2^42322420331 is an apocalyptic number.

42322420331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42322420331 is an equidigital number, since it uses as much as digits as its factorization.

42322420331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 42322420331 its reverse (13302422324), we get a palindrome (55624842655).

The spelling of 42322420331 in words is "forty-two billion, three hundred twenty-two million, four hundred twenty thousand, three hundred thirty-one".