20202312321012 has 24 divisors (see below), whose sum is σ = 47139191915200. Its totient is φ = 6734037940416.

The previous prime is 20202312321007. The next prime is 20202312321031. The reversal of 20202312321012 is 21012321320202.

It is a self number, because there is not a number n which added to its sum of digits gives 20202312321012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6990712 + ... + 9448527.

Almost surely, 2^{20202312321012} is an apocalyptic number.

It is an amenable number.

20202312321012 is an abundant number, since it is smaller than the sum of its proper divisors (26936879594188).

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

20202312321012 is a wasteful number, since it uses less digits than its factorization.

20202312321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16541655 (or 16541653 counting only the distinct ones).

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

Adding to 20202312321012 its reverse (21012321320202), we get a palindrome (41214633641214).

The spelling of 20202312321012 in words is "twenty trillion, two hundred two billion, three hundred twelve million, three hundred twenty-one thousand, twelve".