20132302261 has 2 divisors, whose sum is σ = 20132302262. Its totient is φ = 20132302260.

The previous prime is 20132302259. The next prime is 20132302319. The reversal of 20132302261 is 16220323102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15906002161 + 4226300100 = 126119^2 + 65010^2 .

It is a cyclic number.

It is not a de Polignac number, because 20132302261 - 2¹ = 20132302259 is a prime.

Together with 20132302259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20132302231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066151130 + 10066151131.

It is an arithmetic number, because the mean of its divisors is an integer number (10066151131).

Almost surely, 2^20132302261 is an apocalyptic number.

It is an amenable number.

20132302261 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132302261 is an equidigital number, since it uses as much as digits as its factorization.

20132302261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20132302261 its reverse (16220323102), we get a palindrome (36352625363).

The spelling of 20132302261 in words is "twenty billion, one hundred thirty-two million, three hundred two thousand, two hundred sixty-one".