42520020122273 has 2 divisors, whose sum is σ = 42520020122274. Its totient is φ = 42520020122272.

The previous prime is 42520020122231. The next prime is 42520020122297. The reversal of 42520020122273 is 37222102002524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40416890775184 + 2103129347089 = 6357428^2 + 1450217^2 .

It is a cyclic number.

It is not a de Polignac number, because 42520020122273 - 2¹⁶ = 42520020056737 is a prime.

It is a super-2 number, since 2×42520020122273² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42520020122773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21260010061136 + 21260010061137.

It is an arithmetic number, because the mean of its divisors is an integer number (21260010061137).

Almost surely, 2^{42520020122273} is an apocalyptic number.

It is an amenable number.

42520020122273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520020122273 is an equidigital number, since it uses as much as digits as its factorization.

42520020122273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 42520020122273 its reverse (37222102002524), we get a palindrome (79742122124797).

The spelling of 42520020122273 in words is "forty-two trillion, five hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred seventy-three".