202120020021203 has 4 divisors (see below), whose sum is σ = 207049776607128. Its totient is φ = 197190263435280.

The previous prime is 202120020021193. The next prime is 202120020021239. The reversal of 202120020021203 is 302120020021202.

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 202120020021203 - 2⁴⁰ = 201020508393427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120020029203) 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, 2464878292901 + ... + 2464878292982.

It is an arithmetic number, because the mean of its divisors is an integer number (51762444151782).

Almost surely, 2^{202120020021203} is an apocalyptic number.

202120020021203 is a deficient number, since it is larger than the sum of its proper divisors (4929756585925).

202120020021203 is an equidigital number, since it uses as much as digits as its factorization.

202120020021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4929756585924.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 202120020021203 its reverse (302120020021202), we get a palindrome (504240040042405).

Subtracting 202120020021203 from its reverse (302120020021202), we obtain a palindrome (99999999999999).

The spelling of 202120020021203 in words is "two hundred two trillion, one hundred twenty billion, twenty million, twenty-one thousand, two hundred three".