2321247251 has 2 divisors, whose sum is σ = 2321247252. Its totient is φ = 2321247250.

The previous prime is 2321247223. The next prime is 2321247287. The reversal of 2321247251 is 1527421232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321247251 - 2²⁶ = 2254138387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321247451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160623625 + 1160623626.

It is an arithmetic number, because the mean of its divisors is an integer number (1160623626).

Almost surely, 2^2321247251 is an apocalyptic number.

2321247251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321247251 is an equidigital number, since it uses as much as digits as its factorization.

2321247251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 2321247251 is about 48179.3238952146. The cubic root of 2321247251 is about 1324.0583794763.

Adding to 2321247251 its reverse (1527421232), we get a palindrome (3848668483).

The spelling of 2321247251 in words is "two billion, three hundred twenty-one million, two hundred forty-seven thousand, two hundred fifty-one".