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1312331 is a prime number
BaseRepresentation
bin101000000011001001011
32110200011212
411000121023
5313443311
644043335
714104016
oct5003113
92420155
101312331
11816a79
1253354b
1336c437
1426237d
151adc8b
hex14064b

1312331 has 2 divisors, whose sum is σ = 1312332. Its totient is φ = 1312330.

The previous prime is 1312319. The next prime is 1312343. The reversal of 1312331 is 1332131.

It is a balanced prime because it is at equal distance from previous prime (1312319) and next prime (1312343).

It is a cyclic number.

It is not a de Polignac number, because 1312331 - 210 = 1311307 is a prime.

It is a super-2 number, since 2×13123312 = 3444425307122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1312301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656165 + 656166.

It is an arithmetic number, because the mean of its divisors is an integer number (656166).

21312331 is an apocalyptic number.

1312331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312331 is an equidigital number, since it uses as much as digits as its factorization.

1312331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 14.

The square root of 1312331 is about 1145.5701637176. The cubic root of 1312331 is about 109.4832790019.

Adding to 1312331 its reverse (1332131), we get a palindrome (2644462).

The spelling of 1312331 in words is "one million, three hundred twelve thousand, three hundred thirty-one".