202102120203 has 12 divisors (see below), whose sum is σ = 274649765880. Its totient is φ = 132192576256.

The previous prime is 202102120189. The next prime is 202102120229. The reversal of 202102120203 is 302021201202.

It is a happy number.

It is not a de Polignac number, because 202102120203 - 2³⁰ = 201028378379 is a prime.

It is a super-2 number, since 2×202102120203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202102120303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11982918 + ... + 11999771.

It is an arithmetic number, because the mean of its divisors is an integer number (22887480490).

Almost surely, 2^202102120203 is an apocalyptic number.

202102120203 is a deficient number, since it is larger than the sum of its proper divisors (72547645677).

202102120203 is an equidigital number, since it uses as much as digits as its factorization.

202102120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23982798 (or 23982745 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202102120203 its reverse (302021201202), we get a palindrome (504123321405).

The spelling of 202102120203 in words is "two hundred two billion, one hundred two million, one hundred twenty thousand, two hundred three".