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11212023111 = 34668780051
BaseRepresentation
bin10100111000100100…
…11110010101000111
31001221101101210021020
422130102132111013
5140430234214421
65052320322223
7544562424012
oct123422362507
931841353236
1011212023111
114833992a03
12220aa73373
131098b31303
14785102379
154594c0dc6
hex29c49e547

11212023111 has 8 divisors (see below), whose sum is σ = 14949871104. Its totient is φ = 7474428600.

The previous prime is 11212023083. The next prime is 11212023113. The reversal of 11212023111 is 11132021211.

11212023111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11212023111 - 230 = 10138281287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212023113) 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, 100036 + ... + 180086.

It is an arithmetic number, because the mean of its divisors is an integer number (1868733888).

Almost surely, 211212023111 is an apocalyptic number.

11212023111 is a deficient number, since it is larger than the sum of its proper divisors (3737847993).

11212023111 is an equidigital number, since it uses as much as digits as its factorization.

11212023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126741.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11212023111 its reverse (11132021211), we get a palindrome (22344044322).

The spelling of 11212023111 in words is "eleven billion, two hundred twelve million, twenty-three thousand, one hundred eleven".

Divisors: 1 3 46687 80051 140061 240153 3737341037 11212023111