21014041241 has 16 divisors (see below), whose sum is σ = 23224019328. Its totient is φ = 18912748800.

The previous prime is 21014041199. The next prime is 21014041259. The reversal of 21014041241 is 14214041012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21014041241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21014041141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2345831 + ... + 2354771.

It is an arithmetic number, because the mean of its divisors is an integer number (1451501208).

Almost surely, 2^21014041241 is an apocalyptic number.

It is an amenable number.

21014041241 is a deficient number, since it is larger than the sum of its proper divisors (2209978087).

21014041241 is a wasteful number, since it uses less digits than its factorization.

21014041241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14992.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21014041241 its reverse (14214041012), we get a palindrome (35228082253).

The spelling of 21014041241 in words is "twenty-one billion, fourteen million, forty-one thousand, two hundred forty-one".