23121321200202 has 32 divisors (see below), whose sum is σ = 47837650452480. Its totient is φ = 7441277215680.

The previous prime is 23121321200191. The next prime is 23121321200311. The reversal of 23121321200202 is 20200212312132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20799927 + ... + 21883317.

It is an arithmetic number, because the mean of its divisors is an integer number (1494926576640).

Almost surely, 2^{23121321200202} is an apocalyptic number.

23121321200202 is an abundant number, since it is smaller than the sum of its proper divisors (24716329252278).

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

23121321200202 is a wasteful number, since it uses less digits than its factorization.

23121321200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206078.

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

Adding to 23121321200202 its reverse (20200212312132), we get a palindrome (43321533512334).

The spelling of 23121321200202 in words is "twenty-three trillion, one hundred twenty-one billion, three hundred twenty-one million, two hundred thousand, two hundred two".