202023105421125 has 64 divisors (see below), whose sum is σ = 337081615603200. Its totient is φ = 107452417049600.

The previous prime is 202023105421103. The next prime is 202023105421171. The reversal of 202023105421125 is 521124501320202.

It is not a de Polignac number, because 202023105421125 - 2²⁹ = 202022568550213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202023105421092 and 202023105421101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 996662536 + ... + 996865214.

It is an arithmetic number, because the mean of its divisors is an integer number (5266900243800).

Almost surely, 2^{202023105421125} is an apocalyptic number.

202023105421125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202023105421125 is a deficient number, since it is larger than the sum of its proper divisors (135058510182075).

202023105421125 is a wasteful number, since it uses less digits than its factorization.

202023105421125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209919 (or 209909 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 202023105421125 its reverse (521124501320202), we get a palindrome (723147606741327).

The spelling of 202023105421125 in words is "two hundred two trillion, twenty-three billion, one hundred five million, four hundred twenty-one thousand, one hundred twenty-five".