1233213013 has 2 divisors, whose sum is σ = 1233213014. Its totient is φ = 1233213012.

The previous prime is 1233212999. The next prime is 1233213019. The reversal of 1233213013 is 3103123321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 942612804 + 290600209 = 30702^2 + 17047^2 .

It is an emirp because it is prime and its reverse (3103123321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233213013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233213019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616606506 + 616606507.

It is an arithmetic number, because the mean of its divisors is an integer number (616606507).

Almost surely, 2^1233213013 is an apocalyptic number.

It is an amenable number.

1233213013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233213013 is an equidigital number, since it uses as much as digits as its factorization.

1233213013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1233213013 is about 35117.1327559640. The cubic root of 1233213013 is about 1072.3734001832.

Adding to 1233213013 its reverse (3103123321), we get a palindrome (4336336334).

The spelling of 1233213013 in words is "one billion, two hundred thirty-three million, two hundred thirteen thousand, thirteen".