20134344412 has 36 divisors (see below), whose sum is σ = 44140683720. Its totient is φ = 7965234144.

The previous prime is 20134344367. The next prime is 20134344413. The reversal of 20134344412 is 21444343102.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134344413) by changing a digit.

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, 3948462 + ... + 3953557.

Almost surely, 2^20134344412 is an apocalyptic number.

It is an amenable number.

20134344412 is an abundant number, since it is smaller than the sum of its proper divisors (24006339308).

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

20134344412 is a wasteful number, since it uses less digits than its factorization.

20134344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902050 (or 7902041 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20134344412 its reverse (21444343102), we get a palindrome (41578687514).

The spelling of 20134344412 in words is "twenty billion, one hundred thirty-four million, three hundred forty-four thousand, four hundred twelve".