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12310102012 = 22131066722193
BaseRepresentation
bin10110111011011110…
…10011111111111100
31011202220121222100011
423131233103333330
5200202341231022
65353304113004
7614025066145
oct133557237774
934686558304
1012310102012
11524780592a
122476765764
13121248b740
1484aca0acc
154c0ac7977
hex2ddbd3ffc

12310102012 has 24 divisors (see below), whose sum is σ = 23203028016. Its totient is φ = 5680796928.

The previous prime is 12310102003. The next prime is 12310102019. The reversal of 12310102012 is 21020101321.

It is a super-2 number, since 2×123101020122 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12310101983 and 12310102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310102019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543588 + ... + 565780.

It is an arithmetic number, because the mean of its divisors is an integer number (966792834).

Almost surely, 212310102012 is an apocalyptic number.

It is an amenable number.

12310102012 is a deficient number, since it is larger than the sum of its proper divisors (10892926004).

12310102012 is a wasteful number, since it uses less digits than its factorization.

12310102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32877 (or 32875 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12310102012 its reverse (21020101321), we get a palindrome (33330203333).

The spelling of 12310102012 in words is "twelve billion, three hundred ten million, one hundred two thousand, twelve".

Divisors: 1 2 4 13 26 52 10667 21334 22193 42668 44386 88772 138671 277342 288509 554684 577018 1154036 236732731 473465462 946930924 3077525503 6155051006 12310102012