213012302303 has 4 divisors (see below), whose sum is σ = 215708660640. Its totient is φ = 210315943968.

The previous prime is 213012302297. The next prime is 213012302317. The reversal of 213012302303 is 303203210312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213012302303 - 2²⁸ = 212743866847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012302353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348179050 + ... + 1348179207.

It is an arithmetic number, because the mean of its divisors is an integer number (53927165160).

Almost surely, 2^213012302303 is an apocalyptic number.

213012302303 is a deficient number, since it is larger than the sum of its proper divisors (2696358337).

213012302303 is an equidigital number, since it uses as much as digits as its factorization.

213012302303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696358336.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213012302303 its reverse (303203210312), we get a palindrome (516215512615).

The spelling of 213012302303 in words is "two hundred thirteen billion, twelve million, three hundred two thousand, three hundred three".