20344664011321 has 32 divisors (see below), whose sum is σ = 22009291170048. Its totient is φ = 18694529187840.

The previous prime is 20344664011303. The next prime is 20344664011339. The reversal of 20344664011321 is 12311046644302.

It is an interprime number because it is at equal distance from previous prime (20344664011303) and next prime (20344664011339).

It is a cyclic number.

It is not a de Polignac number, because 20344664011321 - 2¹⁹ = 20344663487033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20344664711321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5885061625 + ... + 5885065081.

It is an arithmetic number, because the mean of its divisors is an integer number (687790349064).

Almost surely, 2^{20344664011321} is an apocalyptic number.

It is an amenable number.

20344664011321 is a deficient number, since it is larger than the sum of its proper divisors (1664627158727).

20344664011321 is a wasteful number, since it uses less digits than its factorization.

20344664011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 20344664011321 in words is "twenty trillion, three hundred forty-four billion, six hundred sixty-four million, eleven thousand, three hundred twenty-one".