213120102303 has 6 divisors (see below), whose sum is σ = 307840147784.
Its totient is φ = 142080068196.
The previous prime is 213120102277. The next prime is 213120102337. The reversal of 213120102303 is 303201021312.
It is not a de Polignac number, because 213120102303 - 225 = 213086547871 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 (213120102203) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11840005675 + ... + 11840005692.
Almost surely, 2213120102303 is an apocalyptic number.
213120102303 is a deficient number, since it is larger than the sum of its proper divisors (94720045481).
213120102303 is a wasteful number, since it uses less digits than its factorization.
213120102303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23680011373 (or 23680011370 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 213120102303 its reverse (303201021312), we get a palindrome (516321123615).
The spelling of 213120102303 in words is "two hundred thirteen billion, one hundred twenty million, one hundred two thousand, three hundred three".