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12210331313 = 25799473287
BaseRepresentation
bin10110101111100101…
…01101111010110001
31011111221220002200002
423113302231322301
5200001321100223
65335341435345
7611404050365
oct132762557261
934457802602
1012210331313
1151a6460704
12244926bb55
1311c78c841b
1483b92d2a5
154b6e6ae28
hex2d7cadeb1

12210331313 has 4 divisors (see below), whose sum is σ = 12210830400. Its totient is φ = 12209832228.

The previous prime is 12210331249. The next prime is 12210331337. The reversal of 12210331313 is 31313301221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12210331313 - 26 = 12210331249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210331373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210845 + ... + 262442.

It is an arithmetic number, because the mean of its divisors is an integer number (3052707600).

Almost surely, 212210331313 is an apocalyptic number.

It is an amenable number.

12210331313 is a deficient number, since it is larger than the sum of its proper divisors (499087).

12210331313 is an equidigital number, since it uses as much as digits as its factorization.

12210331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499086.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12210331313 its reverse (31313301221), we get a palindrome (43523632534).

The spelling of 12210331313 in words is "twelve billion, two hundred ten million, three hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 25799 473287 12210331313