1213200047 has 2 divisors, whose sum is σ = 1213200048. Its totient is φ = 1213200046.

The previous prime is 1213200017. The next prime is 1213200059. The reversal of 1213200047 is 7400023121.

It is a strong prime.

It is an emirp because it is prime and its reverse (7400023121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213200047 - 2²⁶ = 1146091183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213200017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606600023 + 606600024.

It is an arithmetic number, because the mean of its divisors is an integer number (606600024).

Almost surely, 2^1213200047 is an apocalyptic number.

1213200047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213200047 is an equidigital number, since it uses as much as digits as its factorization.

1213200047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1213200047 is about 34831.0213315659. The cubic root of 1213200047 is about 1066.5407975284.

Adding to 1213200047 its reverse (7400023121), we get a palindrome (8613223168).

The spelling of 1213200047 in words is "one billion, two hundred thirteen million, two hundred thousand, forty-seven".