42340232443 has 2 divisors, whose sum is σ = 42340232444. Its totient is φ = 42340232442.

The previous prime is 42340232437. The next prime is 42340232447. The reversal of 42340232443 is 34423204324.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42340232443 - 2²⁹ = 41803361531 is a prime.

It is not a weakly prime, because it can be changed into another prime (42340232447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170116221 + 21170116222.

It is an arithmetic number, because the mean of its divisors is an integer number (21170116222).

Almost surely, 2^42340232443 is an apocalyptic number.

42340232443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42340232443 is an equidigital number, since it uses as much as digits as its factorization.

42340232443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 42340232443 its reverse (34423204324), we get a palindrome (76763436767).

The spelling of 42340232443 in words is "forty-two billion, three hundred forty million, two hundred thirty-two thousand, four hundred forty-three".