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12023110111 = 191291490159
BaseRepresentation
bin10110011001010001…
…00001100111011111
31011000220121021110111
423030220201213133
5144110404010421
65305012550451
7603641515105
oct131450414737
934026537414
1012023110111
11510a806641
1223b6622427
131197b9674c
14820b15c75
154a57d7ee1
hex2cca219df

12023110111 has 8 divisors (see below), whose sum is σ = 12665734400. Its totient is φ = 11381468760.

The previous prime is 12023110103. The next prime is 12023110117. The reversal of 12023110111 is 11101132021.

It is a happy number.

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 12023110111 - 23 = 12023110103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12023110091 and 12023110100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023110117) 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, 220551 + ... + 269608.

It is an arithmetic number, because the mean of its divisors is an integer number (1583216800).

Almost surely, 212023110111 is an apocalyptic number.

12023110111 is a deficient number, since it is larger than the sum of its proper divisors (642624289).

12023110111 is a wasteful number, since it uses less digits than its factorization.

12023110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491469.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12023110111 its reverse (11101132021), we get a palindrome (23124242132).

The spelling of 12023110111 in words is "twelve billion, twenty-three million, one hundred ten thousand, one hundred eleven".

Divisors: 1 19 1291 24529 490159 9313021 632795269 12023110111