20075990240281 has 2 divisors, whose sum is σ = 20075990240282. Its totient is φ = 20075990240280.

The previous prime is 20075990240279. The next prime is 20075990240287. The reversal of 20075990240281 is 18204209957002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10522945600281 + 9553044640000 = 3243909^2 + 3090800^2 .

It is a cyclic number.

It is not a de Polignac number, because 20075990240281 - 2¹ = 20075990240279 is a prime.

It is a super-2 number, since 2×20075990240281² (a number of 27 digits) contains 22 as substring.

Together with 20075990240279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20075990240287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037995120140 + 10037995120141.

It is an arithmetic number, because the mean of its divisors is an integer number (10037995120141).

Almost surely, 2^{20075990240281} is an apocalyptic number.

It is an amenable number.

20075990240281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20075990240281 is an equidigital number, since it uses as much as digits as its factorization.

20075990240281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 20075990240281 in words is "twenty trillion, seventy-five billion, nine hundred ninety million, two hundred forty thousand, two hundred eighty-one".