202321021032312 has 384 divisors, whose sum is σ = 639980418147840. Its totient is φ = 51903091353600.

The previous prime is 202321021032293. The next prime is 202321021032313. The reversal of 202321021032312 is 213230120123202.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202321021032313) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15101957998 + ... + 15101971394.

It is an arithmetic number, because the mean of its divisors is an integer number (1666615672260).

Almost surely, 2^{202321021032312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202321021032312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319990209073920).

202321021032312 is an abundant number, since it is smaller than the sum of its proper divisors (437659397115528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202321021032312 is a wasteful number, since it uses less digits than its factorization.

202321021032312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18551 (or 18510 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 202321021032312 its reverse (213230120123202), we get a palindrome (415551141155514).

The spelling of 202321021032312 in words is "two hundred two trillion, three hundred twenty-one billion, twenty-one million, thirty-two thousand, three hundred twelve".