1143212201 has 2 divisors, whose sum is σ = 1143212202. Its totient is φ = 1143212200.

The previous prime is 1143212167. The next prime is 1143212207. The reversal of 1143212201 is 1022123411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 854042176 + 289170025 = 29224^2 + 17005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143212201 - 2¹⁸ = 1142950057 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 1143212201.

It is not a weakly prime, because it can be changed into another prime (1143212207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571606100 + 571606101.

It is an arithmetic number, because the mean of its divisors is an integer number (571606101).

Almost surely, 2^1143212201 is an apocalyptic number.

It is an amenable number.

1143212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143212201 is an equidigital number, since it uses as much as digits as its factorization.

1143212201 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 1143212201 is about 33811.4211620866. The cubic root of 1143212201 is about 1045.6241781296.

Adding to 1143212201 its reverse (1022123411), we get a palindrome (2165335612).

The spelling of 1143212201 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, two hundred one".