42313030040221 has 2 divisors, whose sum is σ = 42313030040222. Its totient is φ = 42313030040220.

The previous prime is 42313030040161. The next prime is 42313030040227. The reversal of 42313030040221 is 12204003031324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34241351295321 + 8071678744900 = 5851611^2 + 2841070^2 .

It is a cyclic number.

It is not a de Polignac number, because 42313030040221 - 2²³ = 42313021651613 is a prime.

It is a super-2 number, since 2×42313030040221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42313030040227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21156515020110 + 21156515020111.

It is an arithmetic number, because the mean of its divisors is an integer number (21156515020111).

Almost surely, 2^{42313030040221} is an apocalyptic number.

It is an amenable number.

42313030040221 is a deficient number, since it is larger than the sum of its proper divisors (1).

42313030040221 is an equidigital number, since it uses as much as digits as its factorization.

42313030040221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 42313030040221 its reverse (12204003031324), we get a palindrome (54517033071545).

The spelling of 42313030040221 in words is "forty-two trillion, three hundred thirteen billion, thirty million, forty thousand, two hundred twenty-one".