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12313002122 = 26156501061
BaseRepresentation
bin10110111011110100…
…11000000010001010
31011210010002022112122
423131322120002022
5200204112031442
65353450211242
7614061535241
oct133572300212
934703068478
1012313002122
115249406813
122477723b22
131212c65795
1484b417958
154c0e9bdd2
hex2dde9808a

12313002122 has 4 divisors (see below), whose sum is σ = 18469503186. Its totient is φ = 6156501060.

The previous prime is 12313002113. The next prime is 12313002133. The reversal of 12313002122 is 22120031321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22120031321 = 171301178313.

It can be written as a sum of positive squares in only one way, i.e., 11624936761 + 688065361 = 107819^2 + 26231^2 .

It is a super-2 number, since 2×123130021222 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12313002122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078250529 + ... + 3078250532.

Almost surely, 212313002122 is an apocalyptic number.

12313002122 is a deficient number, since it is larger than the sum of its proper divisors (6156501064).

12313002122 is an equidigital number, since it uses as much as digits as its factorization.

12313002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156501063.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12313002122 its reverse (22120031321), we get a palindrome (34433033443).

The spelling of 12313002122 in words is "twelve billion, three hundred thirteen million, two thousand, one hundred twenty-two".

Divisors: 1 2 6156501061 12313002122