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12011300123 = 432111323851
BaseRepresentation
bin10110010111110110…
…11110010100011011
31011000002101021012112
423023323132110123
5144044343100443
65303511502535
7603436236464
oct131373362433
934002337175
1012011300123
11510407a619
1223b2687a4b
1311955c00a4
1481d31dd6b
154a4753b18
hex2cbede51b

12011300123 has 8 divisors (see below), whose sum is σ = 12348891456. Its totient is φ = 11676357000.

The previous prime is 12011300117. The next prime is 12011300137. The reversal of 12011300123 is 32100311021.

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 12011300123 - 228 = 11742864667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011300098 and 12011300107.

It is not an unprimeable number, because it can be changed into a prime (12011300023) 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, 652853 + ... + 670998.

It is an arithmetic number, because the mean of its divisors is an integer number (1543611432).

Almost surely, 212011300123 is an apocalyptic number.

12011300123 is a deficient number, since it is larger than the sum of its proper divisors (337591333).

12011300123 is a wasteful number, since it uses less digits than its factorization.

12011300123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324105.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12011300123 its reverse (32100311021), we get a palindrome (44111611144).

The spelling of 12011300123 in words is "twelve billion, eleven million, three hundred thousand, one hundred twenty-three".

Divisors: 1 43 211 9073 1323851 56925593 279332561 12011300123