20133000321 has 8 divisors (see below), whose sum is σ = 30678857664. Its totient is φ = 11504571600.

The previous prime is 20133000319. The next prime is 20133000341. The reversal of 20133000321 is 12300033102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20133000321 - 2¹ = 20133000319 is a prime.

It is a super-2 number, since 2×20133000321² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20133000321.

It is not an unprimeable number, because it can be changed into a prime (20133000301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 479357130 + ... + 479357171.

It is an arithmetic number, because the mean of its divisors is an integer number (3834857208).

Almost surely, 2^20133000321 is an apocalyptic number.

20133000321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20133000321 is a deficient number, since it is larger than the sum of its proper divisors (10545857343).

20133000321 is an equidigital number, since it uses as much as digits as its factorization.

20133000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958714311.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20133000321 its reverse (12300033102), we get a palindrome (32433033423).

The spelling of 20133000321 in words is "twenty billion, one hundred thirty-three million, three hundred twenty-one", and thus it is an aban number.