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213112341210111 = 37172325954492901
BaseRepresentation
bin110000011101001100010101…
…011001010010001111111111
31000221120100012110221100201120
4300131030111121102033333
5210413113033322210421
62033130242532042023
762613600324526140
oct6035142531221777
91027510173840646
10213112341210111
11619a4488870a42
121ba9a723a63313
1391bb53b4b7905
143a8a999b47ac7
15199881b1308c6
hexc1d3156523ff

213112341210111 has 32 divisors (see below), whose sum is σ = 358794909877248. Its totient is φ = 109631778009600.

The previous prime is 213112341210091. The next prime is 213112341210133. The reversal of 213112341210111 is 111012143211312.

It is not a de Polignac number, because 213112341210111 - 25 = 213112341210079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213112341210011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12977238240 + ... + 12977254661.

It is an arithmetic number, because the mean of its divisors is an integer number (11212340933664).

Almost surely, 2213112341210111 is an apocalyptic number.

213112341210111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213112341210111 is a deficient number, since it is larger than the sum of its proper divisors (145682568667137).

213112341210111 is a wasteful number, since it uses less digits than its factorization.

213112341210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25954492951.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 213112341210111 its reverse (111012143211312), we get a palindrome (324124484421423).

The spelling of 213112341210111 in words is "two hundred thirteen trillion, one hundred twelve billion, three hundred forty-one million, two hundred ten thousand, one hundred eleven".

Divisors: 1 3 7 17 21 23 51 69 119 161 357 391 483 1173 2737 8211 25954492901 77863478703 181681450307 441226379317 545044350921 596953336723 1323679137951 1790860010169 3088584655219 4178673357061 9265753965657 10148206724291 12536020071183 30444620172873 71037447070037 213112341210111