1201342217 has 2 divisors, whose sum is σ = 1201342218. Its totient is φ = 1201342216.

The previous prime is 1201342199. The next prime is 1201342243. The reversal of 1201342217 is 7122431021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883932361 + 317409856 = 29731^2 + 17816^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201342217 - 2⁸ = 1201341961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201342192 and 1201342201.

It is not a weakly prime, because it can be changed into another prime (1201342297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600671108 + 600671109.

It is an arithmetic number, because the mean of its divisors is an integer number (600671109).

Almost surely, 2^1201342217 is an apocalyptic number.

It is an amenable number.

1201342217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201342217 is an equidigital number, since it uses as much as digits as its factorization.

1201342217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1201342217 is about 34660.3839707525. The cubic root of 1201342217 is about 1063.0546211107.

Adding to 1201342217 its reverse (7122431021), we get a palindrome (8323773238).

The spelling of 1201342217 in words is "one billion, two hundred one million, three hundred forty-two thousand, two hundred seventeen".