1312042211 has 2 divisors, whose sum is σ = 1312042212. Its totient is φ = 1312042210.

The previous prime is 1312042181. The next prime is 1312042219. The reversal of 1312042211 is 1122402131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312042211 - 2²² = 1307847907 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312042211.

It is not a weakly prime, because it can be changed into another prime (1312042219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656021105 + 656021106.

It is an arithmetic number, because the mean of its divisors is an integer number (656021106).

Almost surely, 2^1312042211 is an apocalyptic number.

1312042211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312042211 is an equidigital number, since it uses as much as digits as its factorization.

1312042211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1312042211 is about 36222.1232260065. The cubic root of 1312042211 is about 1094.7524752050.

Adding to 1312042211 its reverse (1122402131), we get a palindrome (2434444342).

The spelling of 1312042211 in words is "one billion, three hundred twelve million, forty-two thousand, two hundred eleven".