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12110340231 = 3211295577573
BaseRepresentation
bin10110100011101010…
…10010000010000111
31011020222202000200200
423101311102002013
5144300221341411
65321410341543
7606051123243
oct132165220207
934228660620
1012110340231
115154a75950
12241b88a8b3
1311acc889c2
1482c541423
154ad2b8e56
hex2d1d52087

12110340231 has 48 divisors (see below), whose sum is σ = 19779046560. Its totient is φ = 7072853760.

The previous prime is 12110340181. The next prime is 12110340323. The reversal of 12110340231 is 13204301121.

It is not a de Polignac number, because 12110340231 - 211 = 12110338183 is a prime.

It is a super-2 number, since 2×121103402312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110340331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1595361 + ... + 1602933.

It is an arithmetic number, because the mean of its divisors is an integer number (412063470).

Almost surely, 212110340231 is an apocalyptic number.

12110340231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12110340231 is a deficient number, since it is larger than the sum of its proper divisors (7668706329).

12110340231 is a wasteful number, since it uses less digits than its factorization.

12110340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176 (or 8173 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12110340231 its reverse (13204301121), we get a palindrome (25314641352).

The spelling of 12110340231 in words is "twelve billion, one hundred ten million, three hundred forty thousand, two hundred thirty-one".

Divisors: 1 3 9 11 29 33 87 99 261 319 557 957 1671 2871 5013 6127 7573 16153 18381 22719 48459 55143 68157 83303 145377 177683 219617 249909 533049 658851 749727 1599147 1976553 2415787 4218161 7247361 12654483 21742083 37963449 46399771 122326669 139199313 366980007 417597939 1100940021 1345593359 4036780077 12110340231