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123030111311 = 9711311224351
BaseRepresentation
bin111001010010100101…
…0101000010001001111
3102202120011212012210022
41302211022220101033
54003431202030221
6132304054132355
711613541456112
oct1624512502117
9382504765708
10123030111311
11481a4321648
121ba166510bb
13b7a8bb2443
145d5194a579
153300ee64ab
hex1ca52a844f

123030111311 has 8 divisors (see below), whose sum is σ = 125398460544. Its totient is φ = 120684211200.

The previous prime is 123030111301. The next prime is 123030111359. The reversal of 123030111311 is 113111030321.

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 123030111311 - 230 = 121956369487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123030111311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030111301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5601215 + ... + 5623136.

It is an arithmetic number, because the mean of its divisors is an integer number (15674807568).

Almost surely, 2123030111311 is an apocalyptic number.

123030111311 is a deficient number, since it is larger than the sum of its proper divisors (2368349233).

123030111311 is a wasteful number, since it uses less digits than its factorization.

123030111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224561.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 123030111311 its reverse (113111030321), we get a palindrome (236141141632).

The spelling of 123030111311 in words is "one hundred twenty-three billion, thirty million, one hundred eleven thousand, three hundred eleven".

Divisors: 1 97 113 10961 11224351 1088762047 1268351663 123030111311