21323041014013 has 4 divisors (see below), whose sum is σ = 22445306330560. Its totient is φ = 20200775697468.

The previous prime is 21323041014001. The next prime is 21323041014047. The reversal of 21323041014013 is 31041014032312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21323041014013 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 (21323041017013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 561132658245 + ... + 561132658282.

It is an arithmetic number, because the mean of its divisors is an integer number (5611326582640).

Almost surely, 2^{21323041014013} is an apocalyptic number.

It is an amenable number.

21323041014013 is a deficient number, since it is larger than the sum of its proper divisors (1122265316547).

21323041014013 is a wasteful number, since it uses less digits than its factorization.

21323041014013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122265316546.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21323041014013 its reverse (31041014032312), we get a palindrome (52364055046325).

The spelling of 21323041014013 in words is "twenty-one trillion, three hundred twenty-three billion, forty-one million, fourteen thousand, thirteen".