20131043110044 has 12 divisors (see below), whose sum is σ = 46972433923464. Its totient is φ = 6710347703344.

The previous prime is 20131043110043. The next prime is 20131043110069. The reversal of 20131043110044 is 44001134013102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20131043109996 and 20131043110023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131043110043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838793462907 + ... + 838793462930.

It is an arithmetic number, because the mean of its divisors is an integer number (3914369493622).

Almost surely, 2^{20131043110044} is an apocalyptic number.

It is an amenable number.

20131043110044 is an abundant number, since it is smaller than the sum of its proper divisors (26841390813420).

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

20131043110044 is a wasteful number, since it uses less digits than its factorization.

20131043110044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677586925844 (or 1677586925842 counting only the distinct ones).

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

Adding to 20131043110044 its reverse (44001134013102), we get a palindrome (64132177123146).

The spelling of 20131043110044 in words is "twenty trillion, one hundred thirty-one billion, forty-three million, one hundred ten thousand, forty-four".