42334102021 has 2 divisors, whose sum is σ = 42334102022. Its totient is φ = 42334102020.

The previous prime is 42334101917. The next prime is 42334102051. The reversal of 42334102021 is 12020143324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32654297025 + 9679804996 = 180705^2 + 98386^2 .

It is a cyclic number.

It is not a de Polignac number, because 42334102021 - 2¹⁹ = 42333577733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42334101983 and 42334102001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42334102051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21167051010 + 21167051011.

It is an arithmetic number, because the mean of its divisors is an integer number (21167051011).

Almost surely, 2^42334102021 is an apocalyptic number.

It is an amenable number.

42334102021 is a deficient number, since it is larger than the sum of its proper divisors (1).

42334102021 is an equidigital number, since it uses as much as digits as its factorization.

42334102021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 42334102021 its reverse (12020143324), we get a palindrome (54354245345).

The spelling of 42334102021 in words is "forty-two billion, three hundred thirty-four million, one hundred two thousand, twenty-one".