21110354041 has 8 divisors (see below), whose sum is σ = 24129563904. Its totient is φ = 18092005440.

The previous prime is 21110354011. The next prime is 21110354059. The reversal of 21110354041 is 14045301112.

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 21110354041 - 2¹⁹ = 21109829753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110354011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161905 + ... + 261598.

It is an arithmetic number, because the mean of its divisors is an integer number (3016195488).

Almost surely, 2^21110354041 is an apocalyptic number.

It is an amenable number.

21110354041 is a deficient number, since it is larger than the sum of its proper divisors (3019209863).

21110354041 is an equidigital number, since it uses as much as digits as its factorization.

21110354041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430631.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 21110354041 its reverse (14045301112), we get a palindrome (35155655153).

The spelling of 21110354041 in words is "twenty-one billion, one hundred ten million, three hundred fifty-four thousand, forty-one".