21113010144065 has 16 divisors (see below), whose sum is σ = 28957007882880. Its totient is φ = 14476481399040.

The previous prime is 21113010144053. The next prime is 21113010144071. The reversal of 21113010144065 is 56044101031112.

It is not a de Polignac number, because 21113010144065 - 2⁸ = 21113010143809 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20559755 + ... + 21562224.

It is an arithmetic number, because the mean of its divisors is an integer number (1809812992680).

Almost surely, 2^{21113010144065} is an apocalyptic number.

It is an amenable number.

21113010144065 is a deficient number, since it is larger than the sum of its proper divisors (7843997738815).

21113010144065 is a wasteful number, since it uses less digits than its factorization.

21113010144065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42136312.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 21113010144065 its reverse (56044101031112), we get a palindrome (77157111175177).

The spelling of 21113010144065 in words is "twenty-one trillion, one hundred thirteen billion, ten million, one hundred forty-four thousand, sixty-five".