11104321031 has 4 divisors (see below), whose sum is σ = 11688759000. Its totient is φ = 10519883064.

The previous prime is 11104321013. The next prime is 11104321037. The reversal of 11104321031 is 13012340111.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-11104321031 is a prime.

It is a super-2 number, since 2×11104321031² (a number of 21 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 (11104321037) 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, 292218956 + ... + 292218993.

It is an arithmetic number, because the mean of its divisors is an integer number (2922189750).

Almost surely, 2^11104321031 is an apocalyptic number.

11104321031 is a deficient number, since it is larger than the sum of its proper divisors (584437969).

11104321031 is an equidigital number, since it uses as much as digits as its factorization.

11104321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584437968.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11104321031 its reverse (13012340111), we get a palindrome (24116661142).

The spelling of 11104321031 in words is "eleven billion, one hundred four million, three hundred twenty-one thousand, thirty-one".