20320131333 has 8 divisors (see below), whose sum is σ = 28271487168. Its totient is φ = 12957764864.

The previous prime is 20320131329. The next prime is 20320131367. The reversal of 20320131333 is 33313102302.

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 20320131333 - 2² = 20320131329 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320131313) 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, 147247260 + ... + 147247397.

It is an arithmetic number, because the mean of its divisors is an integer number (3533935896).

Almost surely, 2^20320131333 is an apocalyptic number.

20320131333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20320131333 is a deficient number, since it is larger than the sum of its proper divisors (7951355835).

20320131333 is a wasteful number, since it uses less digits than its factorization.

20320131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294494683.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20320131333 its reverse (33313102302), we get a palindrome (53633233635).

The spelling of 20320131333 in words is "twenty billion, three hundred twenty million, one hundred thirty-one thousand, three hundred thirty-three".