2313251321 has 2 divisors, whose sum is σ = 2313251322. Its totient is φ = 2313251320.

The previous prime is 2313251309. The next prime is 2313251327. The reversal of 2313251321 is 1231523132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1730560000 + 582691321 = 41600^2 + 24139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313251321 is a prime.

It is a super-2 number, since 2×2313251321² = 10702263348216490082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2313251327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156625660 + 1156625661.

It is an arithmetic number, because the mean of its divisors is an integer number (1156625661).

Almost surely, 2^2313251321 is an apocalyptic number.

It is an amenable number.

2313251321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313251321 is an equidigital number, since it uses as much as digits as its factorization.

2313251321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 2313251321 is about 48096.2713835491. The cubic root of 2313251321 is about 1322.5363158875.

Adding to 2313251321 its reverse (1231523132), we get a palindrome (3544774453).

The spelling of 2313251321 in words is "two billion, three hundred thirteen million, two hundred fifty-one thousand, three hundred twenty-one".