202103113021 has 16 divisors (see below), whose sum is σ = 216278009280. Its totient is φ = 188185196800.

The previous prime is 202103112977. The next prime is 202103113073. The reversal of 202103113021 is 120311301202.

202103113021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 202103113021 - 2⁹ = 202103112509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202103112986 and 202103113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202103123021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2199090 + ... + 2289148.

It is an arithmetic number, because the mean of its divisors is an integer number (13517375580).

Almost surely, 2^202103113021 is an apocalyptic number.

It is an amenable number.

202103113021 is a deficient number, since it is larger than the sum of its proper divisors (14174896259).

202103113021 is a wasteful number, since it uses less digits than its factorization.

202103113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91484.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 202103113021 its reverse (120311301202), we get a palindrome (322414414223).

The spelling of 202103113021 in words is "two hundred two billion, one hundred three million, one hundred thirteen thousand, twenty-one".