42531001223 has 2 divisors, whose sum is σ = 42531001224. Its totient is φ = 42531001222.

The previous prime is 42531001207. The next prime is 42531001237. The reversal of 42531001223 is 32210013524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42531001223 - 2⁴ = 42531001207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42531091223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21265500611 + 21265500612.

It is an arithmetic number, because the mean of its divisors is an integer number (21265500612).

Almost surely, 2^42531001223 is an apocalyptic number.

42531001223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42531001223 is an equidigital number, since it uses as much as digits as its factorization.

42531001223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 42531001223 its reverse (32210013524), we get a palindrome (74741014747).

The spelling of 42531001223 in words is "forty-two billion, five hundred thirty-one million, one thousand, two hundred twenty-three".