42210212423 has 2 divisors, whose sum is σ = 42210212424. Its totient is φ = 42210212422.

The previous prime is 42210212393. The next prime is 42210212431. The reversal of 42210212423 is 32421201224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42210212423 - 2⁸ = 42210212167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42210212453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105106211 + 21105106212.

It is an arithmetic number, because the mean of its divisors is an integer number (21105106212).

Almost surely, 2^42210212423 is an apocalyptic number.

42210212423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42210212423 is an equidigital number, since it uses as much as digits as its factorization.

42210212423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 42210212423 its reverse (32421201224), we get a palindrome (74631413647).

The spelling of 42210212423 in words is "forty-two billion, two hundred ten million, two hundred twelve thousand, four hundred twenty-three".