110400002021 has 2 divisors, whose sum is σ = 110400002022. Its totient is φ = 110400002020.

The previous prime is 110400001939. The next prime is 110400002051. The reversal of 110400002021 is 120200004011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63577101025 + 46822900996 = 252145^2 + 216386^2 .

It is a cyclic number.

It is not a de Polignac number, because 110400002021 - 2¹⁴ = 110399985637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110400001993 and 110400002011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110400002051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55200001010 + 55200001011.

It is an arithmetic number, because the mean of its divisors is an integer number (55200001011).

Almost surely, 2^110400002021 is an apocalyptic number.

It is an amenable number.

110400002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

110400002021 is an equidigital number, since it uses as much as digits as its factorization.

110400002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 110400002021 its reverse (120200004011), we get a palindrome (230600006032).

The spelling of 110400002021 in words is "one hundred ten billion, four hundred million, two thousand, twenty-one".