20133100321320 has 128 divisors (see below), whose sum is σ = 69036194764800. Its totient is φ = 4601290020096.

The previous prime is 20133100321307. The next prime is 20133100321339. The reversal of 20133100321320 is 2312300133102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5445877 + ... + 8362043.

It is an arithmetic number, because the mean of its divisors is an integer number (539345271600).

Almost surely, 2^{20133100321320} is an apocalyptic number.

20133100321320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133100321320 is an abundant number, since it is smaller than the sum of its proper divisors (48903094443480).

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

20133100321320 is a wasteful number, since it uses less digits than its factorization.

20133100321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924407 (or 2924403 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20133100321320 its reverse (2312300133102), we get a palindrome (22445400454422).

The spelling of 20133100321320 in words is "twenty trillion, one hundred thirty-three billion, one hundred million, three hundred twenty-one thousand, three hundred twenty".