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12263431 is a prime number
BaseRepresentation
bin101110110010…
…000000000111
3212002001021011
4232302000013
511114412211
61114503051
7206144305
oct56620007
925061234
1012263431
116a16774
124134a87
132704b8b
1418b3275
151123921
hexbb2007

12263431 has 2 divisors, whose sum is σ = 12263432. Its totient is φ = 12263430.

The previous prime is 12263429. The next prime is 12263437. The reversal of 12263431 is 13436221.

It is a weak prime.

It is an emirp because it is prime and its reverse (13436221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12263431 - 21 = 12263429 is a prime.

It is a super-2 number, since 2×122634312 = 300783479783522, which contains 22 as substring.

Together with 12263429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12263437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6131715 + 6131716.

It is an arithmetic number, because the mean of its divisors is an integer number (6131716).

Almost surely, 212263431 is an apocalyptic number.

12263431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12263431 is an equidigital number, since it uses as much as digits as its factorization.

12263431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 12263431 is about 3501.9181886503. The cubic root of 12263431 is about 230.6060324978.

Adding to 12263431 its reverse (13436221), we get a palindrome (25699652).

The spelling of 12263431 in words is "twelve million, two hundred sixty-three thousand, four hundred thirty-one".