20150083321 has 4 divisors (see below), whose sum is σ = 20224438144. Its totient is φ = 20075728500.

The previous prime is 20150083313. The next prime is 20150083333. The reversal of 20150083321 is 12338005102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20150083321 - 2³ = 20150083313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20150083351) 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 3 ways as a sum of consecutive naturals, for example, 37177005 + ... + 37177546.

It is an arithmetic number, because the mean of its divisors is an integer number (5056109536).

Almost surely, 2^20150083321 is an apocalyptic number.

It is an amenable number.

20150083321 is a deficient number, since it is larger than the sum of its proper divisors (74354823).

20150083321 is an equidigital number, since it uses as much as digits as its factorization.

20150083321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74354822.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20150083321 its reverse (12338005102), we get a palindrome (32488088423).

The spelling of 20150083321 in words is "twenty billion, one hundred fifty million, eighty-three thousand, three hundred twenty-one".