213303021307 has 2 divisors, whose sum is σ = 213303021308. Its totient is φ = 213303021306.

The previous prime is 213303021263. The next prime is 213303021343. The reversal of 213303021307 is 703120303312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213303021307 - 2²³ = 213294632699 is a prime.

It is not a weakly prime, because it can be changed into another prime (213303022307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106651510653 + 106651510654.

It is an arithmetic number, because the mean of its divisors is an integer number (106651510654).

Almost surely, 2^213303021307 is an apocalyptic number.

213303021307 is a deficient number, since it is larger than the sum of its proper divisors (1).

213303021307 is an equidigital number, since it uses as much as digits as its factorization.

213303021307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 25.

Adding to 213303021307 its reverse (703120303312), we get a palindrome (916423324619).

The spelling of 213303021307 in words is "two hundred thirteen billion, three hundred three million, twenty-one thousand, three hundred seven".