Search a number
-
+
230331430031 is a prime number
BaseRepresentation
bin1101011010000011010…
…0101011010010001111
3211000112012012222101212
43112200310223102033
512233204321230111
6253451321525035
722432553565113
oct3264064532217
9730465188355
10230331430031
11897570a654a
123878164377b
1318949267c01
14b210561743
155ed121998b
hex35a0d2b48f

230331430031 has 2 divisors, whose sum is σ = 230331430032. Its totient is φ = 230331430030.

The previous prime is 230331430003. The next prime is 230331430039. The reversal of 230331430031 is 130034133032.

230331430031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230331430031 - 26 = 230331429967 is a prime.

It is a super-2 number, since 2×2303314300312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230331429979 and 230331430006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230331430039) 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, 115165715015 + 115165715016.

It is an arithmetic number, because the mean of its divisors is an integer number (115165715016).

Almost surely, 2230331430031 is an apocalyptic number.

230331430031 is a deficient number, since it is larger than the sum of its proper divisors (1).

230331430031 is an equidigital number, since it uses as much as digits as its factorization.

230331430031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 230331430031 its reverse (130034133032), we get a palindrome (360365563063).

The spelling of 230331430031 in words is "two hundred thirty billion, three hundred thirty-one million, four hundred thirty thousand, thirty-one".