213303303347 has 2 divisors, whose sum is σ = 213303303348. Its totient is φ = 213303303346.

The previous prime is 213303303299. The next prime is 213303303371. The reversal of 213303303347 is 743303303312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213303303347 is a prime.

It is not a weakly prime, because it can be changed into another prime (213303323347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106651651673 + 106651651674.

It is an arithmetic number, because the mean of its divisors is an integer number (106651651674).

Almost surely, 2^213303303347 is an apocalyptic number.

213303303347 is a deficient number, since it is larger than the sum of its proper divisors (1).

213303303347 is an equidigital number, since it uses as much as digits as its factorization.

213303303347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 32.

Adding to 213303303347 its reverse (743303303312), we get a palindrome (956606606659).

The spelling of 213303303347 in words is "two hundred thirteen billion, three hundred three million, three hundred three thousand, three hundred forty-seven".