4312011551209 has 2 divisors, whose sum is σ = 4312011551210. Its totient is φ = 4312011551208.

The previous prime is 4312011551167. The next prime is 4312011551291. The reversal of 4312011551209 is 9021551102134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4303251527184 + 8760024025 = 2074428^2 + 93595^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312011551209 - 2¹³ = 4312011543017 is a prime.

It is not a weakly prime, because it can be changed into another prime (4312011552209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156005775604 + 2156005775605.

It is an arithmetic number, because the mean of its divisors is an integer number (2156005775605).

Almost surely, 2^{4312011551209} is an apocalyptic number.

It is an amenable number.

4312011551209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312011551209 is an equidigital number, since it uses as much as digits as its factorization.

4312011551209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 4312011551209 in words is "four trillion, three hundred twelve billion, eleven million, five hundred fifty-one thousand, two hundred nine".