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12313221202 = 210216029981
BaseRepresentation
bin10110111011110110…
…01101100001010010
31011210010111110001201
423131323031201102
5200204141034302
65353455021414
7614063440042
oct133573154122
934703443051
1012313221202
115249546377
12247780a86a
131213011409
1484b473722
154c0ee1c87
hex2ddecd852

12313221202 has 8 divisors (see below), whose sum is σ = 18487924812. Its totient is φ = 6150579600.

The previous prime is 12313221071. The next prime is 12313221203. The reversal of 12313221202 is 20212231321.

It can be written as a sum of positive squares in 2 ways, for example, as 11229428961 + 1083792241 = 105969^2 + 32921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12313221202.

It is not an unprimeable number, because it can be changed into a prime (12313221203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3012949 + ... + 3017032.

Almost surely, 212313221202 is an apocalyptic number.

12313221202 is a deficient number, since it is larger than the sum of its proper divisors (6174703610).

12313221202 is a wasteful number, since it uses less digits than its factorization.

12313221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031004.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12313221202 its reverse (20212231321), we get a palindrome (32525452523).

The spelling of 12313221202 in words is "twelve billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred two".

Divisors: 1 2 1021 2042 6029981 12059962 6156610601 12313221202