20012110321 has 8 divisors (see below), whose sum is σ = 22998755520. Its totient is φ = 17057408208.

The previous prime is 20012110309. The next prime is 20012110361. The reversal of 20012110321 is 12301121002.

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 20012110321 - 2⁹ = 20012109809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012110361) 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, 7984426 + ... + 7986931.

It is an arithmetic number, because the mean of its divisors is an integer number (2874844440).

Almost surely, 2^20012110321 is an apocalyptic number.

It is an amenable number.

20012110321 is a deficient number, since it is larger than the sum of its proper divisors (2986645199).

20012110321 is a wasteful number, since it uses less digits than its factorization.

20012110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15971543.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20012110321 its reverse (12301121002), we get a palindrome (32313231323).

The spelling of 20012110321 in words is "twenty billion, twelve million, one hundred ten thousand, three hundred twenty-one".