2302131281 has 2 divisors, whose sum is σ = 2302131282. Its totient is φ = 2302131280.

The previous prime is 2302131199. The next prime is 2302131283. The reversal of 2302131281 is 1821312032.

It is a happy number.

2302131281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1939609681 + 362521600 = 44041^2 + 19040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2302131281 - 2¹⁴ = 2302114897 is a prime.

It is a super-2 number, since 2×2302131281² = 10599616869917401922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2302131283, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2302131283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151065640 + 1151065641.

It is an arithmetic number, because the mean of its divisors is an integer number (1151065641).

Almost surely, 2^2302131281 is an apocalyptic number.

It is an amenable number.

2302131281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2302131281 is an equidigital number, since it uses as much as digits as its factorization.

2302131281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2302131281 is about 47980.5302284166. The cubic root of 2302131281 is about 1320.4137211347.

The spelling of 2302131281 in words is "two billion, three hundred two million, one hundred thirty-one thousand, two hundred eighty-one".