20110001321 has 8 divisors (see below), whose sum is σ = 20242632288. Its totient is φ = 19977804000.

The previous prime is 20110001273. The next prime is 20110001377. The reversal of 20110001321 is 12310001102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110001321 - 2⁶ = 20110001257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110000321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15095 + ... + 201116.

It is an arithmetic number, because the mean of its divisors is an integer number (2530329036).

Almost surely, 2^20110001321 is an apocalyptic number.

It is an amenable number.

20110001321 is a deficient number, since it is larger than the sum of its proper divisors (132630967).

20110001321 is a wasteful number, since it uses less digits than its factorization.

20110001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216823.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20110001321 its reverse (12310001102), we get a palindrome (32420002423).

The spelling of 20110001321 in words is "twenty billion, one hundred ten million, one thousand, three hundred twenty-one".