20320332312312 has 160 divisors (see below), whose sum is σ = 57420267973200. Its totient is φ = 6713528140800.

The previous prime is 20320332312299. The next prime is 20320332312323. The reversal of 20320332312312 is 21321323302302.

20320332312312 is a `hidden beast` number, since 2 + 0 + 3 + 2 + 0 + 3 + 32 + 312 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 69547264 + ... + 69838832.

Almost surely, 2^{20320332312312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20320332312312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28710133986600).

20320332312312 is an abundant number, since it is smaller than the sum of its proper divisors (37099935660888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20320332312312 is a wasteful number, since it uses less digits than its factorization.

20320332312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292539 (or 292526 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 20320332312312 its reverse (21321323302302), we get a palindrome (41641655614614).

The spelling of 20320332312312 in words is "twenty trillion, three hundred twenty billion, three hundred thirty-two million, three hundred twelve thousand, three hundred twelve".