42000152321 has 2 divisors, whose sum is σ = 42000152322. Its totient is φ = 42000152320.

The previous prime is 42000152279. The next prime is 42000152323. The reversal of 42000152321 is 12325100024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41773228225 + 226924096 = 204385^2 + 15064^2 .

It is a cyclic number.

It is not a de Polignac number, because 42000152321 - 2¹⁴ = 42000135937 is a prime.

Together with 42000152323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42000152293 and 42000152302.

It is not a weakly prime, because it can be changed into another prime (42000152323) 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, 21000076160 + 21000076161.

It is an arithmetic number, because the mean of its divisors is an integer number (21000076161).

Almost surely, 2^42000152321 is an apocalyptic number.

It is an amenable number.

42000152321 is a deficient number, since it is larger than the sum of its proper divisors (1).

42000152321 is an equidigital number, since it uses as much as digits as its factorization.

42000152321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 42000152321 its reverse (12325100024), we get a palindrome (54325252345).

The spelling of 42000152321 in words is "forty-two billion, one hundred fifty-two thousand, three hundred twenty-one".