42423312313 has 2 divisors, whose sum is σ = 42423312314. Its totient is φ = 42423312312.

The previous prime is 42423312289. The next prime is 42423312383. The reversal of 42423312313 is 31321332424.

It is a happy number.

42423312313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26183123344 + 16240188969 = 161812^2 + 127437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42423312313 is a prime.

It is not a weakly prime, because it can be changed into another prime (42423312383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21211656156 + 21211656157.

It is an arithmetic number, because the mean of its divisors is an integer number (21211656157).

Almost surely, 2^42423312313 is an apocalyptic number.

It is an amenable number.

42423312313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42423312313 is an equidigital number, since it uses as much as digits as its factorization.

42423312313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 28.

Adding to 42423312313 its reverse (31321332424), we get a palindrome (73744644737).

The spelling of 42423312313 in words is "forty-two billion, four hundred twenty-three million, three hundred twelve thousand, three hundred thirteen".