20133131112320 has 64 divisors (see below), whose sum is σ = 48131660203200. Its totient is φ = 8053102921728.

The previous prime is 20133131112317. The next prime is 20133131112349. The reversal of 20133131112320 is 2321113133102.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38156537 + ... + 38680583.

It is an arithmetic number, because the mean of its divisors is an integer number (752057190675).

Almost surely, 2^{20133131112320} is an apocalyptic number.

20133131112320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133131112320 is an abundant number, since it is smaller than the sum of its proper divisors (27998529090880).

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

20133131112320 is an equidigital number, since it uses as much as digits as its factorization.

20133131112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584095 (or 584083 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20133131112320 its reverse (2321113133102), we get a palindrome (22454244245422).

The spelling of 20133131112320 in words is "twenty trillion, one hundred thirty-three billion, one hundred thirty-one million, one hundred twelve thousand, three hundred twenty".