20133211321 has 8 divisors (see below), whose sum is σ = 20294964224. Its totient is φ = 19971509040.

The previous prime is 20133211309. The next prime is 20133211327. The reversal of 20133211321 is 12311233102.

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

It is a cyclic number.

It is not a de Polignac number, because 20133211321 - 2⁹ = 20133210809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20133211327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571086 + ... + 1583848.

It is an arithmetic number, because the mean of its divisors is an integer number (2536870528).

Almost surely, 2^20133211321 is an apocalyptic number.

It is an amenable number.

20133211321 is a deficient number, since it is larger than the sum of its proper divisors (161752903).

20133211321 is a wasteful number, since it uses less digits than its factorization.

20133211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25311.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20133211321 its reverse (12311233102), we get a palindrome (32444444423).

The spelling of 20133211321 in words is "twenty billion, one hundred thirty-three million, two hundred eleven thousand, three hundred twenty-one".