111031104431 has 8 divisors (see below), whose sum is σ = 119582431584. Its totient is φ = 102481273440.

The previous prime is 111031104427. The next prime is 111031104433. The reversal of 111031104431 is 134401130111.

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

It is not a de Polignac number, because 111031104431 - 2² = 111031104427 is a prime.

It is a super-2 number, since 2×111031104431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111031104433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217475 + ... + 518996.

It is an arithmetic number, because the mean of its divisors is an integer number (14947803948).

Almost surely, 2^111031104431 is an apocalyptic number.

111031104431 is a deficient number, since it is larger than the sum of its proper divisors (8551327153).

111031104431 is a wasteful number, since it uses less digits than its factorization.

111031104431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748081.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 111031104431 its reverse (134401130111), we get a palindrome (245432234542).

The spelling of 111031104431 in words is "one hundred eleven billion, thirty-one million, one hundred four thousand, four hundred thirty-one".