1323101231 has 2 divisors, whose sum is σ = 1323101232. Its totient is φ = 1323101230.

The previous prime is 1323101209. The next prime is 1323101237. The reversal of 1323101231 is 1321013231.

It is a strong prime.

It is an emirp because it is prime and its reverse (1321013231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323101231 - 2¹⁸ = 1322839087 is a prime.

It is a super-2 number, since 2×1323101231² = 3501193734947430722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323101237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661550615 + 661550616.

It is an arithmetic number, because the mean of its divisors is an integer number (661550616).

Almost surely, 2^1323101231 is an apocalyptic number.

1323101231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323101231 is an equidigital number, since it uses as much as digits as its factorization.

1323101231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1323101231 is about 36374.4584976876. The cubic root of 1323101231 is about 1097.8197119282.

Adding to 1323101231 its reverse (1321013231), we get a palindrome (2644114462).

The spelling of 1323101231 in words is "one billion, three hundred twenty-three million, one hundred one thousand, two hundred thirty-one".