21210230041 has 16 divisors (see below), whose sum is σ = 28478072448. Its totient is φ = 15256108800.

The previous prime is 21210230033. The next prime is 21210230059. The reversal of 21210230041 is 14003201212.

It is a cyclic number.

It is not a de Polignac number, because 21210230041 - 2³ = 21210230033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21210229997 and 21210230024.

It is not an unprimeable number, because it can be changed into a prime (21210230011) 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 15 ways as a sum of consecutive naturals, for example, 10593520 + ... + 10595521.

It is an arithmetic number, because the mean of its divisors is an integer number (1779879528).

Almost surely, 2^21210230041 is an apocalyptic number.

It is an amenable number.

21210230041 is a deficient number, since it is larger than the sum of its proper divisors (7267842407).

21210230041 is a wasteful number, since it uses less digits than its factorization.

21210230041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21189072.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21210230041 its reverse (14003201212), we get a palindrome (35213431253).

The spelling of 21210230041 in words is "twenty-one billion, two hundred ten million, two hundred thirty thousand, forty-one".