20320330012331 has 8 divisors (see below), whose sum is σ = 20331495572304. Its totient is φ = 20309165809920.

The previous prime is 20320330012309. The next prime is 20320330012351. The reversal of 20320330012331 is 13321003302302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20320330012331 is a prime.

It is a super-2 number, since 2×20320330012331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20320330012297 and 20320330012306.

It is not an unprimeable number, because it can be changed into a prime (20320330012351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30366191 + ... + 31028151.

It is an arithmetic number, because the mean of its divisors is an integer number (2541436946538).

Almost surely, 2^{20320330012331} is an apocalyptic number.

20320330012331 is a deficient number, since it is larger than the sum of its proper divisors (11165559973).

20320330012331 is a wasteful number, since it uses less digits than its factorization.

20320330012331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678781.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20320330012331 its reverse (13321003302302), we get a palindrome (33641333314633).

The spelling of 20320330012331 in words is "twenty trillion, three hundred twenty billion, three hundred thirty million, twelve thousand, three hundred thirty-one".