110123021011 has 4 divisors (see below), whose sum is σ = 110406114000. Its totient is φ = 109839928024.

The previous prime is 110123021009. The next prime is 110123021033. The reversal of 110123021011 is 110120321011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 110123021011 - 2¹ = 110123021009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110123020982 and 110123021000.

It is not an unprimeable number, because it can be changed into a prime (110123021081) 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, 141545911 + ... + 141546688.

It is an arithmetic number, because the mean of its divisors is an integer number (27601528500).

Almost surely, 2^110123021011 is an apocalyptic number.

110123021011 is a deficient number, since it is larger than the sum of its proper divisors (283092989).

110123021011 is an equidigital number, since it uses as much as digits as its factorization.

110123021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283092988.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 110123021011 its reverse (110120321011), we get a palindrome (220243342022).

The spelling of 110123021011 in words is "one hundred ten billion, one hundred twenty-three million, twenty-one thousand, eleven".