2321322231257 has 2 divisors, whose sum is σ = 2321322231258. Its totient is φ = 2321322231256.

The previous prime is 2321322231203. The next prime is 2321322231353. The reversal of 2321322231257 is 7521322231232.

2321322231257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1559828642761 + 761493588496 = 1248931^2 + 872636^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321322231257 - 2¹⁰ = 2321322230233 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321322231157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160661115628 + 1160661115629.

It is an arithmetic number, because the mean of its divisors is an integer number (1160661115629).

Almost surely, 2^{2321322231257} is an apocalyptic number.

It is an amenable number.

2321322231257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321322231257 is an equidigital number, since it uses as much as digits as its factorization.

2321322231257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 35.

Adding to 2321322231257 its reverse (7521322231232), we get a palindrome (9842644462489).

The spelling of 2321322231257 in words is "two trillion, three hundred twenty-one billion, three hundred twenty-two million, two hundred thirty-one thousand, two hundred fifty-seven".