20010214321 has 4 divisors (see below), whose sum is σ = 20012211700. Its totient is φ = 20008216944.

The previous prime is 20010214283. The next prime is 20010214333. The reversal of 20010214321 is 12341201002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6631822096 + 13378392225 = 81436^2 + 115665^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010214321 - 2⁷ = 20010214193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010214295 and 20010214304.

It is not an unprimeable number, because it can be changed into a prime (20010214351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983586 + ... + 1003723.

It is an arithmetic number, because the mean of its divisors is an integer number (5003052925).

Almost surely, 2^20010214321 is an apocalyptic number.

It is an amenable number.

20010214321 is a deficient number, since it is larger than the sum of its proper divisors (1997379).

20010214321 is a wasteful number, since it uses less digits than its factorization.

20010214321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997378.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20010214321 its reverse (12341201002), we get a palindrome (32351415323).

The spelling of 20010214321 in words is "twenty billion, ten million, two hundred fourteen thousand, three hundred twenty-one".