20133201320 has 64 divisors (see below), whose sum is σ = 48412831680. Its totient is φ = 7508694016.

The previous prime is 20133201313. The next prime is 20133201391. The reversal of 20133201320 is 2310233102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65594 + ... + 211113.

It is an arithmetic number, because the mean of its divisors is an integer number (756450495).

Almost surely, 2^20133201320 is an apocalyptic number.

20133201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20133201320 is an abundant number, since it is smaller than the sum of its proper divisors (28279630360).

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

20133201320 is a wasteful number, since it uses less digits than its factorization.

20133201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276842 (or 276838 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20133201320 its reverse (2310233102), we get a palindrome (22443434422).

The spelling of 20133201320 in words is "twenty billion, one hundred thirty-three million, two hundred one thousand, three hundred twenty".