20111044404031 has 8 divisors (see below), whose sum is σ = 23121679795200. Its totient is φ = 17134816274808.

The previous prime is 20111044404029. The next prime is 20111044404037. The reversal of 20111044404031 is 13040444011102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20111044404031 - 2¹ = 20111044404029 is a prime.

It is a super-2 number, since 2×20111044404031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111044403987 and 20111044404005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111044404037) 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, 8601814231 + ... + 8601816568.

It is an arithmetic number, because the mean of its divisors is an integer number (2890209974400).

Almost surely, 2^{20111044404031} is an apocalyptic number.

20111044404031 is a deficient number, since it is larger than the sum of its proper divisors (3010635391169).

20111044404031 is a wasteful number, since it uses less digits than its factorization.

20111044404031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17203630973.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20111044404031 its reverse (13040444011102), we get a palindrome (33151488415133).

The spelling of 20111044404031 in words is "twenty trillion, one hundred eleven billion, forty-four million, four hundred four thousand, thirty-one".