1212230473 has 2 divisors, whose sum is σ = 1212230474. Its totient is φ = 1212230472.

The previous prime is 1212230471. The next prime is 1212230497. The reversal of 1212230473 is 3740322121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089198009 + 123032464 = 33003^2 + 11092^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212230473 - 2¹ = 1212230471 is a prime.

Together with 1212230471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1212230471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606115236 + 606115237.

It is an arithmetic number, because the mean of its divisors is an integer number (606115237).

Almost surely, 2^1212230473 is an apocalyptic number.

It is an amenable number.

1212230473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212230473 is an equidigital number, since it uses as much as digits as its factorization.

1212230473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1212230473 is about 34817.1002956880. The cubic root of 1212230473 is about 1066.2565998729.

Adding to 1212230473 its reverse (3740322121), we get a palindrome (4952552594).

The spelling of 1212230473 in words is "one billion, two hundred twelve million, two hundred thirty thousand, four hundred seventy-three".