20131423112004 has 48 divisors (see below), whose sum is σ = 47512252233600. Its totient is φ = 6633764614656.

The previous prime is 20131423111981. The next prime is 20131423112029. The reversal of 20131423112004 is 40021132413102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16955397 + ... + 18103820.

It is an arithmetic number, because the mean of its divisors is an integer number (989838588200).

Almost surely, 2^{20131423112004} is an apocalyptic number.

It is an amenable number.

20131423112004 is an abundant number, since it is smaller than the sum of its proper divisors (27380829121596).

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

20131423112004 is a wasteful number, since it uses less digits than its factorization.

20131423112004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35059772 (or 35059770 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20131423112004 its reverse (40021132413102), we get a palindrome (60152555525106).

The spelling of 20131423112004 in words is "twenty trillion, one hundred thirty-one billion, four hundred twenty-three million, one hundred twelve thousand, four".