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231215341241 is a prime number
BaseRepresentation
bin1101011101010110000…
…0100001111010111001
3211002210210110022122002
43113111200201322321
512242012111404431
6254115135110345
722463505654533
oct3272540417271
9732723408562
10231215341241
118a07003a085
12389896723b5
1318a5a41a4b1
14b295ad0853
156033b193cb
hex35d5821eb9

231215341241 has 2 divisors, whose sum is σ = 231215341242. Its totient is φ = 231215341240.

The previous prime is 231215341141. The next prime is 231215341283. The reversal of 231215341241 is 142143512132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221868318841 + 9347022400 = 471029^2 + 96680^2 .

It is a cyclic number.

It is not a de Polignac number, because 231215341241 - 218 = 231215079097 is a prime.

It is not a weakly prime, because it can be changed into another prime (231215341141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115607670620 + 115607670621.

It is an arithmetic number, because the mean of its divisors is an integer number (115607670621).

Almost surely, 2231215341241 is an apocalyptic number.

It is an amenable number.

231215341241 is a deficient number, since it is larger than the sum of its proper divisors (1).

231215341241 is an equidigital number, since it uses as much as digits as its factorization.

231215341241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

Adding to 231215341241 its reverse (142143512132), we get a palindrome (373358853373).

The spelling of 231215341241 in words is "two hundred thirty-one billion, two hundred fifteen million, three hundred forty-one thousand, two hundred forty-one".