20450122420031 has 2 divisors, whose sum is σ = 20450122420032. Its totient is φ = 20450122420030.

The previous prime is 20450122420003. The next prime is 20450122420043. The reversal of 20450122420031 is 13002422105402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20450122420031 - 2¹⁸ = 20450122157887 is a prime.

It is a super-2 number, since 2×20450122420031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20450122428031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10225061210015 + 10225061210016.

It is an arithmetic number, because the mean of its divisors is an integer number (10225061210016).

Almost surely, 2^{20450122420031} is an apocalyptic number.

20450122420031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450122420031 is an equidigital number, since it uses as much as digits as its factorization.

20450122420031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20450122420031 its reverse (13002422105402), we get a palindrome (33452544525433).

The spelling of 20450122420031 in words is "twenty trillion, four hundred fifty billion, one hundred twenty-two million, four hundred twenty thousand, thirty-one".