20131404112 has 20 divisors (see below), whose sum is σ = 39122444416. Its totient is φ = 10035289440.

The previous prime is 20131404091. The next prime is 20131404211. The reversal of 20131404112 is 21140413102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131404112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895328 + ... + 1905919.

Almost surely, 2^20131404112 is an apocalyptic number.

It is an amenable number.

20131404112 is a deficient number, since it is larger than the sum of its proper divisors (18991040304).

20131404112 is a wasteful number, since it uses less digits than its factorization.

20131404112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801586 (or 3801580 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20131404112 its reverse (21140413102), we get a palindrome (41271817214).

The spelling of 20131404112 in words is "twenty billion, one hundred thirty-one million, four hundred four thousand, one hundred twelve".