110156041021 has 4 divisors (see below), whose sum is σ = 118629582652. Its totient is φ = 101682499392.

The previous prime is 110156041013. The next prime is 110156041031. The reversal of 110156041021 is 120140651011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120140651011 = 1789 ⋅67155199.

It can be written as a sum of positive squares in 2 ways, for example, as 13070205625 + 97085835396 = 114325^2 + 311586^2 .

It is a cyclic number.

It is not a de Polignac number, because 110156041021 - 2³ = 110156041013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110156040983 and 110156041001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110156041031) 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, 4236770796 + ... + 4236770821.

It is an arithmetic number, because the mean of its divisors is an integer number (29657395663).

Almost surely, 2^110156041021 is an apocalyptic number.

It is an amenable number.

110156041021 is a deficient number, since it is larger than the sum of its proper divisors (8473541631).

110156041021 is an equidigital number, since it uses as much as digits as its factorization.

110156041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8473541630.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 110156041021 its reverse (120140651011), we get a palindrome (230296692032).

The spelling of 110156041021 in words is "one hundred ten billion, one hundred fifty-six million, forty-one thousand, twenty-one".