1312323101 has 2 divisors, whose sum is σ = 1312323102. Its totient is φ = 1312323100.

The previous prime is 1312323083. The next prime is 1312323107. The reversal of 1312323101 is 1013232131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1312323076 + 25 = 36226^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312323101 - 2¹⁴ = 1312306717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312323101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312323107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656161550 + 656161551.

It is an arithmetic number, because the mean of its divisors is an integer number (656161551).

Almost surely, 2^1312323101 is an apocalyptic number.

It is an amenable number.

1312323101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312323101 is an equidigital number, since it uses as much as digits as its factorization.

1312323101 is an evil number, because the sum of its binary digits is even.

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

The square root of 1312323101 is about 36226.0003450560. Note that the first 3 decimals coincide. The cubic root of 1312323101 is about 1094.8305933932.

Adding to 1312323101 its reverse (1013232131), we get a palindrome (2325555232).

It can be divided in two parts, 131 and 2323101, that added together give a palindrome (2323232).

The spelling of 1312323101 in words is "one billion, three hundred twelve million, three hundred twenty-three thousand, one hundred one".