Search a number
-
+
12500153231 is a prime number
BaseRepresentation
bin10111010010001000…
…10011001110001111
31012021011020120121012
423221010103032033
5201100014400411
65424213355435
7621523356266
oct135104231617
935234216535
1012500153231
115335013155
12250a338b7b
131242971597
148682135dd
154d261918b
hex2e911338f

12500153231 has 2 divisors, whose sum is σ = 12500153232. Its totient is φ = 12500153230.

The previous prime is 12500153189. The next prime is 12500153249. The reversal of 12500153231 is 13235100521.

It is a happy number.

12500153231 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 a de Polignac number, because none of the positive numbers 2k-12500153231 is a prime.

It is a super-2 number, since 2×125001532312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12500153197 and 12500153206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500153251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250076615 + 6250076616.

It is an arithmetic number, because the mean of its divisors is an integer number (6250076616).

Almost surely, 212500153231 is an apocalyptic number.

12500153231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500153231 is an equidigital number, since it uses as much as digits as its factorization.

12500153231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 12500153231 its reverse (13235100521), we get a palindrome (25735253752).

The spelling of 12500153231 in words is "twelve billion, five hundred million, one hundred fifty-three thousand, two hundred thirty-one".