213102120031303 has 4 divisors (see below), whose sum is σ = 213102149747760. Its totient is φ = 213102090314848.

The previous prime is 213102120031291. The next prime is 213102120031319. The reversal of 213102120031303 is 303130021201312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213102120031303 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 (213102129031303) 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, 3276303 + ... + 20903071.

It is an arithmetic number, because the mean of its divisors is an integer number (53275537436940).

Almost surely, 2^{213102120031303} is an apocalyptic number.

213102120031303 is a deficient number, since it is larger than the sum of its proper divisors (29716457).

213102120031303 is a wasteful number, since it uses less digits than its factorization.

213102120031303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29716456.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213102120031303 its reverse (303130021201312), we get a palindrome (516232141232615).

The spelling of 213102120031303 in words is "two hundred thirteen trillion, one hundred two billion, one hundred twenty million, thirty-one thousand, three hundred three".