42344223331 has 2 divisors, whose sum is σ = 42344223332. Its totient is φ = 42344223330.

The previous prime is 42344223329. The next prime is 42344223409. The reversal of 42344223331 is 13332244324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42344223331 - 2¹ = 42344223329 is a prime.

It is a super-2 number, since 2×42344223331² (a number of 22 digits) contains 22 as substring.

Together with 42344223329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42344223293 and 42344223302.

It is not a weakly prime, because it can be changed into another prime (42344221331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172111665 + 21172111666.

It is an arithmetic number, because the mean of its divisors is an integer number (21172111666).

Almost surely, 2^42344223331 is an apocalyptic number.

42344223331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42344223331 is an equidigital number, since it uses as much as digits as its factorization.

42344223331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 31.

Adding to 42344223331 its reverse (13332244324), we get a palindrome (55676467655).

The spelling of 42344223331 in words is "forty-two billion, three hundred forty-four million, two hundred twenty-three thousand, three hundred thirty-one".