2042130281 has 2 divisors, whose sum is σ = 2042130282. Its totient is φ = 2042130280.

The previous prime is 2042130263. The next prime is 2042130283. The reversal of 2042130281 is 1820312402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1948427881 + 93702400 = 44141^2 + 9680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042130281 - 2²⁶ = 1975021417 is a prime.

It is a super-2 number, since 2×2042130281² = 8340592169154277922, which contains 22 as substring.

Together with 2042130283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2042130283) 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, 1021065140 + 1021065141.

It is an arithmetic number, because the mean of its divisors is an integer number (1021065141).

Almost surely, 2^2042130281 is an apocalyptic number.

It is an amenable number.

2042130281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042130281 is an equidigital number, since it uses as much as digits as its factorization.

2042130281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2042130281 is about 45189.9356162409. The cubic root of 2042130281 is about 1268.7064517364.

Adding to 2042130281 its reverse (1820312402), we get a palindrome (3862442683).

The spelling of 2042130281 in words is "two billion, forty-two million, one hundred thirty thousand, two hundred eighty-one".