1202320013 has 2 divisors, whose sum is σ = 1202320014. Its totient is φ = 1202320012.

The previous prime is 1202320003. The next prime is 1202320037. The reversal of 1202320013 is 3100232021.

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., 806389609 + 395930404 = 28397^2 + 19898^2 .

It is an emirp because it is prime and its reverse (3100232021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202320013 - 2⁴ = 1202319997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1202320013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202320003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601160006 + 601160007.

It is an arithmetic number, because the mean of its divisors is an integer number (601160007).

Almost surely, 2^1202320013 is an apocalyptic number.

It is an amenable number.

1202320013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202320013 is an equidigital number, since it uses as much as digits as its factorization.

1202320013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1202320013 is about 34674.4864850224. The cubic root of 1202320013 is about 1063.3429565684.

Adding to 1202320013 its reverse (3100232021), we get a palindrome (4302552034).

The spelling of 1202320013 in words is "one billion, two hundred two million, three hundred twenty thousand, thirteen".