20120323320000 has 280 divisors, whose sum is σ = 73913874676400. Its totient is φ = 5365419264000.

The previous prime is 20120323319969. The next prime is 20120323320029. The reversal of 20120323320000 is 2332302102.

It is a happy number.

20120323320000 is a `hidden beast` number, since 2 + 0 + 1 + 20 + 323 + 320 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8234965 + ... + 10394964.

Almost surely, 2^{20120323320000} is an apocalyptic number.

20120323320000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120323320000 is an abundant number, since it is smaller than the sum of its proper divisors (53793551356400).

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

20120323320000 is an equidigital number, since it uses as much as digits as its factorization.

20120323320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18629970 (or 18629939 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20120323320000 its reverse (2332302102), we get a palindrome (20122655622102).

The spelling of 20120323320000 in words is "twenty trillion, one hundred twenty billion, three hundred twenty-three million, three hundred twenty thousand".