20110101321 has 8 divisors (see below), whose sum is σ = 26814280320. Its totient is φ = 13406328272.

The previous prime is 20110101317. The next prime is 20110101343. The reversal of 20110101321 is 12310101102.

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 20110101321 - 2² = 20110101317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110101297 and 20110101306.

It is not an unprimeable number, because it can be changed into a prime (20110101371) 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 7 ways as a sum of consecutive naturals, for example, 43831 + ... + 205283.

It is an arithmetic number, because the mean of its divisors is an integer number (3351785040).

Almost surely, 2^20110101321 is an apocalyptic number.

It is an amenable number.

20110101321 is a deficient number, since it is larger than the sum of its proper divisors (6704178999).

20110101321 is a wasteful number, since it uses less digits than its factorization.

20110101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202975.

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

Adding to 20110101321 its reverse (12310101102), we get a palindrome (32420202423).

The spelling of 20110101321 in words is "twenty billion, one hundred ten million, one hundred one thousand, three hundred twenty-one".