202021120021003 has 16 divisors (see below), whose sum is σ = 205656043253760. Its totient is φ = 198393286252896.

The previous prime is 202021120020997. The next prime is 202021120021027. The reversal of 202021120021003 is 300120021120202.

It is a happy number.

202021120021003 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 202021120021003 - 2³⁷ = 201883681067531 is a prime.

It is a super-2 number, since 2×202021120021003² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202021120021403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385129501 + ... + 385653697.

It is an arithmetic number, because the mean of its divisors is an integer number (12853502703360).

Almost surely, 2^{202021120021003} is an apocalyptic number.

202021120021003 is a deficient number, since it is larger than the sum of its proper divisors (3634923232757).

202021120021003 is a wasteful number, since it uses less digits than its factorization.

202021120021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530946.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 202021120021003 its reverse (300120021120202), we get a palindrome (502141141141205).

The spelling of 202021120021003 in words is "two hundred two trillion, twenty-one billion, one hundred twenty million, twenty-one thousand, three".