110019421 has 2 divisors, whose sum is σ = 110019422. Its totient is φ = 110019420.

The previous prime is 110019407. The next prime is 110019439. The reversal of 110019421 is 124910011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72012196 + 38007225 = 8486^2 + 6165^2 .

It is a cyclic number.

It is not a de Polignac number, because 110019421 - 2¹¹ = 110017373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110019491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55009710 + 55009711.

It is an arithmetic number, because the mean of its divisors is an integer number (55009711).

Almost surely, 2^110019421 is an apocalyptic number.

It is an amenable number.

110019421 is a deficient number, since it is larger than the sum of its proper divisors (1).

110019421 is an equidigital number, since it uses as much as digits as its factorization.

110019421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 110019421 is about 10489.0143006862. The cubic root of 110019421 is about 479.1701822788.

Adding to 110019421 its reverse (124910011), we get a palindrome (234929432).

The spelling of 110019421 in words is "one hundred ten million, nineteen thousand, four hundred twenty-one".