20020213331 has 2 divisors, whose sum is σ = 20020213332. Its totient is φ = 20020213330.

The previous prime is 20020213267. The next prime is 20020213333. The reversal of 20020213331 is 13331202002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020213331 - 2⁶ = 20020213267 is a prime.

It is a super-3 number, since 3×20020213331³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 20020213333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20020213333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010106665 + 10010106666.

It is an arithmetic number, because the mean of its divisors is an integer number (10010106666).

Almost surely, 2^20020213331 is an apocalyptic number.

20020213331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020213331 is an equidigital number, since it uses as much as digits as its factorization.

20020213331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20020213331 its reverse (13331202002), we get a palindrome (33351415333).

The spelling of 20020213331 in words is "twenty billion, twenty million, two hundred thirteen thousand, three hundred thirty-one".