20213213401303 has 4 divisors (see below), whose sum is σ = 21768075970648. Its totient is φ = 18658350831960.

The previous prime is 20213213401291. The next prime is 20213213401321. The reversal of 20213213401303 is 30310431231202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20213213401303 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 (20213213441303) 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, 777431284653 + ... + 777431284678.

It is an arithmetic number, because the mean of its divisors is an integer number (5442018992662).

Almost surely, 2^{20213213401303} is an apocalyptic number.

20213213401303 is a deficient number, since it is larger than the sum of its proper divisors (1554862569345).

20213213401303 is a wasteful number, since it uses less digits than its factorization.

20213213401303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554862569344.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20213213401303 its reverse (30310431231202), we get a palindrome (50523644632505).

The spelling of 20213213401303 in words is "twenty trillion, two hundred thirteen billion, two hundred thirteen million, four hundred one thousand, three hundred three".