110031223021 has 4 divisors (see below), whose sum is σ = 113580617344. Its totient is φ = 106481828700.

The previous prime is 110031222941. The next prime is 110031223031. The reversal of 110031223021 is 120322130011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 110031223021 - 2¹¹ = 110031220973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110031222986 and 110031223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110031223031) 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 3 ways as a sum of consecutive naturals, for example, 1774697115 + ... + 1774697176.

It is an arithmetic number, because the mean of its divisors is an integer number (28395154336).

Almost surely, 2^110031223021 is an apocalyptic number.

It is an amenable number.

110031223021 is a deficient number, since it is larger than the sum of its proper divisors (3549394323).

110031223021 is an equidigital number, since it uses as much as digits as its factorization.

110031223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549394322.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 110031223021 its reverse (120322130011), we get a palindrome (230353353032).

The spelling of 110031223021 in words is "one hundred ten billion, thirty-one million, two hundred twenty-three thousand, twenty-one".