13018203111044 has 24 divisors (see below), whose sum is σ = 22793703991128. Its totient is φ = 6505716821760.

The previous prime is 13018203111041. The next prime is 13018203111049. The reversal of 13018203111044 is 44011130281031.

It can be written as a sum of positive squares in 4 ways, for example, as 755590144 + 13017447520900 = 27488^2 + 3607970^2 .

It is a super-2 number, since 2×13018203111044² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13018203110998 and 13018203111016.

It is not an unprimeable number, because it can be changed into a prime (13018203111041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101370314 + ... + 101498654.

It is an arithmetic number, because the mean of its divisors is an integer number (949737666297).

Almost surely, 2^{13018203111044} is an apocalyptic number.

It is an amenable number.

13018203111044 is a deficient number, since it is larger than the sum of its proper divisors (9775500880084).

13018203111044 is a wasteful number, since it uses less digits than its factorization.

13018203111044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141335 (or 141333 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 13018203111044 its reverse (44011130281031), we get a palindrome (57029333392075).

The spelling of 13018203111044 in words is "thirteen trillion, eighteen billion, two hundred three million, one hundred eleven thousand, forty-four".