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11212310031223 = 72955233054341
BaseRepresentation
bin1010001100101001000111…
…0000011010101101110111
31110200212221011102202001011
42203022101300122231313
52432200302331444343
635502510352213051
72235030331523230
oct243122160325567
943625834382034
1011212310031223
113633128787834
12131102bb3a187
13634415ba8672
142aa9704da087
151469d06e029d
hexa3291c1ab77

11212310031223 has 8 divisors (see below), whose sum is σ = 13255933042080. Its totient is φ = 9279153129120.

The previous prime is 11212310031193. The next prime is 11212310031233. The reversal of 11212310031223 is 32213001321211.

11212310031223 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 a de Polignac number, because none of the positive numbers 2k-11212310031223 is a prime.

It is a super-2 number, since 2×112123100312232 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212310031194 and 11212310031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212310031233) 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, 27616526968 + ... + 27616527373.

It is an arithmetic number, because the mean of its divisors is an integer number (1656991630260).

Almost surely, 211212310031223 is an apocalyptic number.

11212310031223 is a deficient number, since it is larger than the sum of its proper divisors (2043623010857).

11212310031223 is an equidigital number, since it uses as much as digits as its factorization.

11212310031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55233054377.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11212310031223 its reverse (32213001321211), we get a palindrome (43425311352434).

The spelling of 11212310031223 in words is "eleven trillion, two hundred twelve billion, three hundred ten million, thirty-one thousand, two hundred twenty-three".

Divisors: 1 7 29 203 55233054341 386631380387 1601758575889 11212310031223