20323933321 has 4 divisors (see below), whose sum is σ = 20503791252. Its totient is φ = 20144075392.

The previous prime is 20323933303. The next prime is 20323933327. The reversal of 20323933321 is 12333932302.

It is a happy number.

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 957036096 + 19366897225 = 30936^2 + 139165^2 .

It is a cyclic number.

It is not a de Polignac number, because 20323933321 - 2¹⁷ = 20323802249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323933327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89928796 + ... + 89929021.

It is an arithmetic number, because the mean of its divisors is an integer number (5125947813).

Almost surely, 2^20323933321 is an apocalyptic number.

It is an amenable number.

20323933321 is a deficient number, since it is larger than the sum of its proper divisors (179857931).

20323933321 is a wasteful number, since it uses less digits than its factorization.

20323933321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179857930.

The product of its (nonzero) digits is 17496, while the sum is 31.

The spelling of 20323933321 in words is "twenty billion, three hundred twenty-three million, nine hundred thirty-three thousand, three hundred twenty-one".