20301203231 has 2 divisors, whose sum is σ = 20301203232. Its totient is φ = 20301203230.

The previous prime is 20301203173. The next prime is 20301203243. The reversal of 20301203231 is 13230210302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20301203231 is a prime.

It is a super-2 number, since 2×20301203231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20301208231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150601615 + 10150601616.

It is an arithmetic number, because the mean of its divisors is an integer number (10150601616).

Almost surely, 2^20301203231 is an apocalyptic number.

20301203231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301203231 is an equidigital number, since it uses as much as digits as its factorization.

20301203231 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 17.

Adding to 20301203231 its reverse (13230210302), we get a palindrome (33531413533).

The spelling of 20301203231 in words is "twenty billion, three hundred one million, two hundred three thousand, two hundred thirty-one".