1233321202013 has 2 divisors, whose sum is σ = 1233321202014. Its totient is φ = 1233321202012.

The previous prime is 1233321201967. The next prime is 1233321202049. The reversal of 1233321202013 is 3102021233321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1219781086969 + 13540115044 = 1104437^2 + 116362^2 .

It is an emirp because it is prime and its reverse (3102021233321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233321202013 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 1233321202013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233321202063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616660601006 + 616660601007.

It is an arithmetic number, because the mean of its divisors is an integer number (616660601007).

Almost surely, 2^{1233321202013} is an apocalyptic number.

It is an amenable number.

1233321202013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233321202013 is an equidigital number, since it uses as much as digits as its factorization.

1233321202013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1233321202013 its reverse (3102021233321), we get a palindrome (4335342435334).

The spelling of 1233321202013 in words is "one trillion, two hundred thirty-three billion, three hundred twenty-one million, two hundred two thousand, thirteen".