20213143121112 has 32 divisors (see below), whose sum is σ = 51033183133680. Its totient is φ = 6671004329600.

The previous prime is 20213143121071. The next prime is 20213143121137. The reversal of 20213143121112 is 21112134131202.

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

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, 4169375283 + ... + 4169380130.

Almost surely, 2^{20213143121112} is an apocalyptic number.

It is an amenable number.

20213143121112 is an abundant number, since it is smaller than the sum of its proper divisors (30820040012568).

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

20213143121112 is a wasteful number, since it uses less digits than its factorization.

20213143121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8338755523 (or 8338755519 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 20213143121112 its reverse (21112134131202), we get a palindrome (41325277252314).

The spelling of 20213143121112 in words is "twenty trillion, two hundred thirteen billion, one hundred forty-three million, one hundred twenty-one thousand, one hundred twelve".