20371521410412 has 12 divisors (see below), whose sum is σ = 47533549957656. Its totient is φ = 6790507136800.

The previous prime is 20371521410411. The next prime is 20371521410431. The reversal of 20371521410412 is 21401412517302.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20371521410411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848813392089 + ... + 848813392112.

It is an arithmetic number, because the mean of its divisors is an integer number (3961129163138).

Almost surely, 2^{20371521410412} is an apocalyptic number.

It is an amenable number.

20371521410412 is an abundant number, since it is smaller than the sum of its proper divisors (27162028547244).

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

20371521410412 is a wasteful number, since it uses less digits than its factorization.

20371521410412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697626784208 (or 1697626784206 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 20371521410412 its reverse (21401412517302), we get a palindrome (41772933927714).

The spelling of 20371521410412 in words is "twenty trillion, three hundred seventy-one billion, five hundred twenty-one million, four hundred ten thousand, four hundred twelve".