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123103320311 = 1721503336761
BaseRepresentation
bin111001010100110000…
…1111001100011110111
3102202202021121121122202
41302221201321203313
54004103422222221
6132315231215115
711615420646326
oct1625141714367
9382667547582
10123103320311
1148231684654
121ba3707749b
13b7bb10578a
145d5b5660bd
153307657d0b
hex1ca98798f7

123103320311 has 8 divisors (see below), whose sum is σ = 130351140864. Its totient is φ = 115856216320.

The previous prime is 123103320289. The next prime is 123103320317. The reversal of 123103320311 is 113023301321.

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 123103320311 - 26 = 123103320247 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 (123103320317) 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, 197171 + ... + 533931.

It is an arithmetic number, because the mean of its divisors is an integer number (16293892608).

Almost surely, 2123103320311 is an apocalyptic number.

123103320311 is a deficient number, since it is larger than the sum of its proper divisors (7247820553).

123103320311 is a wasteful number, since it uses less digits than its factorization.

123103320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358281.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123103320311 its reverse (113023301321), we get a palindrome (236126621632).

The spelling of 123103320311 in words is "one hundred twenty-three billion, one hundred three million, three hundred twenty thousand, three hundred eleven".

Divisors: 1 17 21503 336761 365551 5724937 7241371783 123103320311