1312201127 has 2 divisors, whose sum is σ = 1312201128. Its totient is φ = 1312201126.

The previous prime is 1312201081. The next prime is 1312201157. The reversal of 1312201127 is 7211022131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7211022131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312201127 - 2⁶ = 1312201063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312201099 and 1312201108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312201157) 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, 656100563 + 656100564.

It is an arithmetic number, because the mean of its divisors is an integer number (656100564).

Almost surely, 2^1312201127 is an apocalyptic number.

1312201127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312201127 is an equidigital number, since it uses as much as digits as its factorization.

1312201127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1312201127 is about 36224.3167913489. The cubic root of 1312201127 is about 1094.7966726298.

Adding to 1312201127 its reverse (7211022131), we get a palindrome (8523223258).

The spelling of 1312201127 in words is "one billion, three hundred twelve million, two hundred one thousand, one hundred twenty-seven".