1213202030203 has 4 divisors (see below), whose sum is σ = 1213306116840. Its totient is φ = 1213097943568.

The previous prime is 1213202030197. The next prime is 1213202030213. The reversal of 1213202030203 is 3020302023121.

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 1213202030203 - 2⁵ = 1213202030171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213202030213) 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, 52025833 + ... + 52049146.

It is an arithmetic number, because the mean of its divisors is an integer number (303326529210).

Almost surely, 2^{1213202030203} is an apocalyptic number.

1213202030203 is a deficient number, since it is larger than the sum of its proper divisors (104086637).

1213202030203 is a wasteful number, since it uses less digits than its factorization.

1213202030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104086636.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1213202030203 its reverse (3020302023121), we get a palindrome (4233504053324).

The spelling of 1213202030203 in words is "one trillion, two hundred thirteen billion, two hundred two million, thirty thousand, two hundred three".