20233320331 has 4 divisors (see below), whose sum is σ = 23123794672. Its totient is φ = 17342845992.

The previous prime is 20233320323. The next prime is 20233320377. The reversal of 20233320331 is 13302333202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20233320331 - 2³ = 20233320323 is a prime.

It is a super-2 number, since 2×20233320331² (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 (20233326331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445237160 + ... + 1445237173.

It is an arithmetic number, because the mean of its divisors is an integer number (5780948668).

Almost surely, 2^20233320331 is an apocalyptic number.

20233320331 is a deficient number, since it is larger than the sum of its proper divisors (2890474341).

20233320331 is an equidigital number, since it uses as much as digits as its factorization.

20233320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890474340.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20233320331 its reverse (13302333202), we get a palindrome (33535653533).

The spelling of 20233320331 in words is "twenty billion, two hundred thirty-three million, three hundred twenty thousand, three hundred thirty-one".