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12122122323 = 317237688673
BaseRepresentation
bin10110100101000100…
…01110100001010011
31011021210220121200110
423102202032201103
5144311230403243
65322511052403
7606253224333
oct132242164123
934253817613
1012122122323
115160692a13
122423811103
1311b255275c
1482dd2b0c3
154ae344e33
hex2d288e853

12122122323 has 8 divisors (see below), whose sum is σ = 17113584528. Its totient is φ = 7606037504.

The previous prime is 12122122291. The next prime is 12122122429. The reversal of 12122122323 is 32322122121.

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

It is a cyclic number.

It is not a de Polignac number, because 12122122323 - 25 = 12122122291 is a prime.

It is a super-2 number, since 2×121221223232 (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 12122122323.

It is not an unprimeable number, because it can be changed into a prime (12122122223) 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, 118844286 + ... + 118844387.

It is an arithmetic number, because the mean of its divisors is an integer number (2139198066).

Almost surely, 212122122323 is an apocalyptic number.

12122122323 is a deficient number, since it is larger than the sum of its proper divisors (4991462205).

12122122323 is a wasteful number, since it uses less digits than its factorization.

12122122323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237688693.

The product of its digits is 576, while the sum is 21.

Adding to 12122122323 its reverse (32322122121), we get a palindrome (44444244444).

The spelling of 12122122323 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, three hundred twenty-three".

Divisors: 1 3 17 51 237688673 713066019 4040707441 12122122323