20321333153 has 8 divisors (see below), whose sum is σ = 22169772576. Its totient is φ = 18473068000.

The previous prime is 20321333147. The next prime is 20321333209. The reversal of 20321333153 is 35133312302.

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 20321333153 - 2⁸ = 20321332897 is a prime.

It is a super-2 number, since 2×20321333153² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321333953) 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, 375878 + ... + 426528.

It is an arithmetic number, because the mean of its divisors is an integer number (2771221572).

Almost surely, 2^20321333153 is an apocalyptic number.

It is an amenable number.

20321333153 is a deficient number, since it is larger than the sum of its proper divisors (1848439423).

20321333153 is a wasteful number, since it uses less digits than its factorization.

20321333153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87135.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 20321333153 its reverse (35133312302), we get a palindrome (55454645455).

The spelling of 20321333153 in words is "twenty billion, three hundred twenty-one million, three hundred thirty-three thousand, one hundred fifty-three".