20213297538112 has 84 divisors (see below), whose sum is σ = 46893929275200. Its totient is φ = 8619309667584.

The previous prime is 20213297538073. The next prime is 20213297538163. The reversal of 20213297538112 is 21183579231202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15570828 + ... + 16818955.

It is an arithmetic number, because the mean of its divisors is an integer number (558261062800).

Almost surely, 2^{20213297538112} is an apocalyptic number.

It is an amenable number.

20213297538112 is an abundant number, since it is smaller than the sum of its proper divisors (26680631737088).

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

20213297538112 is a wasteful number, since it uses less digits than its factorization.

20213297538112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32390008 (or 32389991 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 20213297538112 in words is "twenty trillion, two hundred thirteen billion, two hundred ninety-seven million, five hundred thirty-eight thousand, one hundred twelve".