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12203213013 = 323134331989
BaseRepresentation
bin10110101110101111…
…00100000011010101
31011111110111110012100
423113113210003111
5144443010304023
65334525112313
7611256412335
oct132727440325
934443443170
1012203213013
1151a2439612
1224469b8699
1311c62a5404
1483a9d90c5
154b6511c43
hex2d75e40d5

12203213013 has 12 divisors (see below), whose sum is σ = 17683183180. Its totient is φ = 8109481536.

The previous prime is 12203212949. The next prime is 12203213027. The reversal of 12203213013 is 31031230221.

It can be written as a sum of positive squares in 2 ways, for example, as 5317034724 + 6886178289 = 72918^2 + 82983^2 .

It is not a de Polignac number, because 12203213013 - 26 = 12203212949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203213093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2163178 + ... + 2168811.

Almost surely, 212203213013 is an apocalyptic number.

It is an amenable number.

12203213013 is a deficient number, since it is larger than the sum of its proper divisors (5479970167).

12203213013 is a wasteful number, since it uses less digits than its factorization.

12203213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332308 (or 4332305 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12203213013 its reverse (31031230221), we get a palindrome (43234443234).

The spelling of 12203213013 in words is "twelve billion, two hundred three million, two hundred thirteen thousand, thirteen".

Divisors: 1 3 9 313 939 2817 4331989 12995967 38987901 1355912557 4067737671 12203213013