21110141 has 16 divisors (see below), whose sum is σ = 24494400. Its totient is φ = 18018048.

The previous prime is 21110129. The next prime is 21110149. The reversal of 21110141 is 14101112.

It is a cyclic number.

It is not a de Polignac number, because 21110141 - 2¹⁰ = 21109117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12230 + ... + 13848.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^21110141 is an apocalyptic number.

It is an amenable number.

21110141 is a deficient number, since it is larger than the sum of its proper divisors (3384259).

21110141 is a wasteful number, since it uses less digits than its factorization.

21110141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 21110141 is about 4594.5773472649. The cubic root of 21110141 is about 276.3739112291.

Adding to 21110141 its reverse (14101112), we get a palindrome (35211253).

The spelling of 21110141 in words is "twenty-one million, one hundred ten thousand, one hundred forty-one".