20100134321 has 8 divisors (see below), whose sum is σ = 20128488288. Its totient is φ = 20071800000.

The previous prime is 20100134317. The next prime is 20100134357. The reversal of 20100134321 is 12343100102.

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 20100134321 - 2² = 20100134317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20100134321.

It is not an unprimeable number, because it can be changed into a prime (20100134311) 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, 4255241 + ... + 4259961.

It is an arithmetic number, because the mean of its divisors is an integer number (2516061036).

Almost surely, 2^20100134321 is an apocalyptic number.

It is an amenable number.

20100134321 is a deficient number, since it is larger than the sum of its proper divisors (28353967).

20100134321 is a wasteful number, since it uses less digits than its factorization.

20100134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9823.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20100134321 its reverse (12343100102), we get a palindrome (32443234423).

The spelling of 20100134321 in words is "twenty billion, one hundred million, one hundred thirty-four thousand, three hundred twenty-one".