2431132261 has 2 divisors, whose sum is σ = 2431132262. Its totient is φ = 2431132260.

The previous prime is 2431132259. The next prime is 2431132307. The reversal of 2431132261 is 1622311342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2431081636 + 50625 = 49306^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431132261 - 2¹ = 2431132259 is a prime.

Together with 2431132259, 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 (2431132241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215566130 + 1215566131.

It is an arithmetic number, because the mean of its divisors is an integer number (1215566131).

Almost surely, 2^2431132261 is an apocalyptic number.

It is an amenable number.

2431132261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431132261 is an equidigital number, since it uses as much as digits as its factorization.

2431132261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 2431132261 is about 49306.5133729815. The cubic root of 2431132261 is about 1344.6302030588.

The spelling of 2431132261 in words is "two billion, four hundred thirty-one million, one hundred thirty-two thousand, two hundred sixty-one".