2130302261 has 2 divisors, whose sum is σ = 2130302262. Its totient is φ = 2130302260.

The previous prime is 2130302243. The next prime is 2130302311. The reversal of 2130302261 is 1622030312.

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., 2106351025 + 23951236 = 45895^2 + 4894^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130302261 - 2¹⁴ = 2130285877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130332261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065151130 + 1065151131.

It is an arithmetic number, because the mean of its divisors is an integer number (1065151131).

Almost surely, 2^2130302261 is an apocalyptic number.

It is an amenable number.

2130302261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130302261 is an equidigital number, since it uses as much as digits as its factorization.

2130302261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2130302261 is about 46155.1975513051. The cubic root of 2130302261 is about 1286.7092096311.

Adding to 2130302261 its reverse (1622030312), we get a palindrome (3752332573).

The spelling of 2130302261 in words is "two billion, one hundred thirty million, three hundred two thousand, two hundred sixty-one".