20302003231 has 2 divisors, whose sum is σ = 20302003232. Its totient is φ = 20302003230.

The previous prime is 20302003229. The next prime is 20302003259. The reversal of 20302003231 is 13230020302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20302003231 - 2¹ = 20302003229 is a prime.

It is a super-2 number, since 2×20302003231² (a number of 21 digits) contains 22 as substring.

Together with 20302003229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20302003831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151001615 + 10151001616.

It is an arithmetic number, because the mean of its divisors is an integer number (10151001616).

Almost surely, 2^20302003231 is an apocalyptic number.

20302003231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302003231 is an equidigital number, since it uses as much as digits as its factorization.

20302003231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20302003231 its reverse (13230020302), we get a palindrome (33532023533).

The spelling of 20302003231 in words is "twenty billion, three hundred two million, three thousand, two hundred thirty-one".