202021230122103 has 16 divisors (see below), whose sum is σ = 308299291840256. Its totient is φ = 115269171413760.

The previous prime is 202021230122093. The next prime is 202021230122221. The reversal of 202021230122103 is 301221032120202.

It is not a de Polignac number, because 202021230122103 - 2¹⁰ = 202021230121079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202021230122103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021230122903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7147131913 + ... + 7147160178.

It is an arithmetic number, because the mean of its divisors is an integer number (19268705740016).

Almost surely, 2^{202021230122103} is an apocalyptic number.

202021230122103 is a deficient number, since it is larger than the sum of its proper divisors (106278061718153).

202021230122103 is a wasteful number, since it uses less digits than its factorization.

202021230122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14294292774.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 202021230122103 its reverse (301221032120202), we get a palindrome (503242262242305).

The spelling of 202021230122103 in words is "two hundred two trillion, twenty-one billion, two hundred thirty million, one hundred twenty-two thousand, one hundred three".