20134223412 has 12 divisors (see below), whose sum is σ = 46979854656. Its totient is φ = 6711407800.

The previous prime is 20134223407. The next prime is 20134223423. The reversal of 20134223412 is 21432243102.

It is a happy number.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 838925964 + ... + 838925987.

It is an arithmetic number, because the mean of its divisors is an integer number (3914987888).

Almost surely, 2^20134223412 is an apocalyptic number.

It is an amenable number.

20134223412 is an abundant number, since it is smaller than the sum of its proper divisors (26845631244).

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

20134223412 is a wasteful number, since it uses less digits than its factorization.

20134223412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677851958 (or 1677851956 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20134223412 its reverse (21432243102), we get a palindrome (41566466514).

The spelling of 20134223412 in words is "twenty billion, one hundred thirty-four million, two hundred twenty-three thousand, four hundred twelve".