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12112113333213 = 3549844087791
BaseRepresentation
bin1011000001000001001000…
…1101100111001111011101
31120212220111000002112100000
42300100102031213033131
53041421102003130323
641432121131524513
72360033313431205
oct260202215471735
946786430075300
1012112113333213
11394a79a23a493
1214374aa2b9739
1369b2239953ca
142dc32d71d405
151600e5815e43
hexb04123673dd

12112113333213 has 12 divisors (see below), whose sum is σ = 18143247956288. Its totient is φ = 8074742221980.

The previous prime is 12112113333179. The next prime is 12112113333233. The reversal of 12112113333213 is 31233331121121.

12112113333213 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 2 + 1 + 1 + 333 + 321 + 3 = 666.

It is not a de Polignac number, because 12112113333213 - 217 = 12112113202141 is a prime.

It is a super-2 number, since 2×121121133332132 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112113333233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24922043653 + ... + 24922044138.

Almost surely, 212112113333213 is an apocalyptic number.

It is an amenable number.

12112113333213 is a deficient number, since it is larger than the sum of its proper divisors (6031134623075).

12112113333213 is an frugal number, since it uses more digits than its factorization.

12112113333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49844087806 (or 49844087794 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 12112113333213 its reverse (31233331121121), we get a palindrome (43345444454334).

The spelling of 12112113333213 in words is "twelve trillion, one hundred twelve billion, one hundred thirteen million, three hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 3 9 27 81 243 49844087791 149532263373 448596790119 1345790370357 4037371111071 12112113333213