42403434023 has 2 divisors, whose sum is σ = 42403434024. Its totient is φ = 42403434022.

The previous prime is 42403434013. The next prime is 42403434037. The reversal of 42403434023 is 32043430424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42403434023 - 2¹⁶ = 42403368487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42403434013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201717011 + 21201717012.

It is an arithmetic number, because the mean of its divisors is an integer number (21201717012).

Almost surely, 2^42403434023 is an apocalyptic number.

42403434023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42403434023 is an equidigital number, since it uses as much as digits as its factorization.

42403434023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 42403434023 its reverse (32043430424), we get a palindrome (74446864447).

The spelling of 42403434023 in words is "forty-two billion, four hundred three million, four hundred thirty-four thousand, twenty-three".