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123312123113 = 3122447177209
BaseRepresentation
bin111001011010111111…
…0011010110011101001
3102210021211111220020212
41302311332122303221
54010020400414423
6132352050430505
711623534516004
oct1626576326351
9383254456225
10123312123113
114832952a253
121ba94b92435
13b82245272a
145d7b19a53b
15331ab50578
hex1cb5f9ace9

123312123113 has 8 divisors (see below), whose sum is σ = 127296322560. Its totient is φ = 119328323040.

The previous prime is 123312123101. The next prime is 123312123131. The reversal of 123312123113 is 311321213321.

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 123312123113 - 224 = 123295345897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123312143113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607253 + ... + 784461.

It is an arithmetic number, because the mean of its divisors is an integer number (15912040320).

Almost surely, 2123312123113 is an apocalyptic number.

It is an amenable number.

123312123113 is a deficient number, since it is larger than the sum of its proper divisors (3984199447).

123312123113 is a wasteful number, since it uses less digits than its factorization.

123312123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199687.

The product of its digits is 648, while the sum is 23.

Adding to 123312123113 its reverse (311321213321), we get a palindrome (434633336434).

The spelling of 123312123113 in words is "one hundred twenty-three billion, three hundred twelve million, one hundred twenty-three thousand, one hundred thirteen".

Divisors: 1 31 22447 177209 695857 5493479 3977810423 123312123113