202123321030 has 16 divisors (see below), whose sum is σ = 375558171264. Its totient is φ = 78241285440.

The previous prime is 202123321027. The next prime is 202123321067. The reversal of 202123321030 is 30123321202.

It is a junction number, because it is equal to n+sod(n) for n = 202123320989 and 202123321007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326005047 + ... + 326005666.

It is an arithmetic number, because the mean of its divisors is an integer number (23472385704).

Almost surely, 2^202123321030 is an apocalyptic number.

202123321030 is a deficient number, since it is larger than the sum of its proper divisors (173434850234).

202123321030 is a wasteful number, since it uses less digits than its factorization.

202123321030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652010751.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202123321030 its reverse (30123321202), we get a palindrome (232246642232).

The spelling of 202123321030 in words is "two hundred two billion, one hundred twenty-three million, three hundred twenty-one thousand, thirty".