110030021 has 8 divisors (see below), whose sum is σ = 111279960. Its totient is φ = 108785152.

The previous prime is 110030009. The next prime is 110030023. The reversal of 110030021 is 120030011.

It can be written as a sum of positive squares in 4 ways, for example, as 20349121 + 89680900 = 4511^2 + 9470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110030021 - 2⁶ = 110029957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110029990 and 110030008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110030023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56561 + ... + 58473.

It is an arithmetic number, because the mean of its divisors is an integer number (13909995).

Almost surely, 2^110030021 is an apocalyptic number.

It is an amenable number.

110030021 is a deficient number, since it is larger than the sum of its proper divisors (1249939).

110030021 is a wasteful number, since it uses less digits than its factorization.

110030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 110030021 is about 10489.5195790846. The cubic root of 110030021 is about 479.1855705947.

Adding to 110030021 its reverse (120030011), we get a palindrome (230060032).

The spelling of 110030021 in words is "one hundred ten million, thirty thousand, twenty-one".