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12210112123 = 111816132653
BaseRepresentation
bin10110101111100011…
…11000011001111011
31011111221110221222221
423113301320121323
5200001242041443
65335333024511
7611402145346
oct132761703173
934457427887
1012210112123
1151a6320a60
122449185137
1311c784c721
1483b8b345d
154b6e25eed
hex2d7c7867b

12210112123 has 8 divisors (see below), whose sum is σ = 13393716336. Its totient is φ = 11038773600.

The previous prime is 12210112091. The next prime is 12210112129. The reversal of 12210112123 is 32121101221.

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 12210112123 - 25 = 12210112091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210112097 and 12210112106.

It is not an unprimeable number, because it can be changed into a prime (12210112129) 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, 3064336 + ... + 3068317.

It is an arithmetic number, because the mean of its divisors is an integer number (1674214542).

Almost surely, 212210112123 is an apocalyptic number.

12210112123 is a deficient number, since it is larger than the sum of its proper divisors (1183604213).

12210112123 is a wasteful number, since it uses less digits than its factorization.

12210112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132845.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12210112123 its reverse (32121101221), we get a palindrome (44331213344).

The spelling of 12210112123 in words is "twelve billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-three".

Divisors: 1 11 181 1991 6132653 67459183 1110010193 12210112123