213003023203013 has 4 divisors (see below), whose sum is σ = 213028882507500. Its totient is φ = 212977163898528.

The previous prime is 213003023203007. The next prime is 213003023203057. The reversal of 213003023203013 is 310302320300312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50565780565444 + 162437242637569 = 7110962^2 + 12745087^2 .

It is a cyclic number.

It is not a de Polignac number, because 213003023203013 - 2⁸ = 213003023202757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213003023203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213003023203813) 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, 12929639888 + ... + 12929656361.

It is an arithmetic number, because the mean of its divisors is an integer number (53257220626875).

Almost surely, 2^{213003023203013} is an apocalyptic number.

It is an amenable number.

213003023203013 is a deficient number, since it is larger than the sum of its proper divisors (25859304487).

213003023203013 is an equidigital number, since it uses as much as digits as its factorization.

213003023203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25859304486.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 213003023203013 its reverse (310302320300312), we get a palindrome (523305343503325).

The spelling of 213003023203013 in words is "two hundred thirteen trillion, three billion, twenty-three million, two hundred three thousand, thirteen".