20321330311 has 8 divisors (see below), whose sum is σ = 20796107904. Its totient is φ = 19846652280.

The previous prime is 20321330303. The next prime is 20321330321. The reversal of 20321330311 is 11303312302.

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 20321330311 - 2³ = 20321330303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321330321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531540 + ... + 568486.

It is an arithmetic number, because the mean of its divisors is an integer number (2599513488).

Almost surely, 2^20321330311 is an apocalyptic number.

20321330311 is a deficient number, since it is larger than the sum of its proper divisors (474777593).

20321330311 is a wasteful number, since it uses less digits than its factorization.

20321330311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49781.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20321330311 its reverse (11303312302), we get a palindrome (31624642613).

The spelling of 20321330311 in words is "twenty billion, three hundred twenty-one million, three hundred thirty thousand, three hundred eleven".