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12132211311 = 3211373312097
BaseRepresentation
bin10110100110010001…
…01101101001101111
31011022111220012011200
423103020231221233
5144321321230221
65323511220543
7606435044313
oct132310555157
934274805150
1012132211311
115166353a20
122427077753
1311b467597c
148313d5b43
154b0189426
hex2d322da6f

12132211311 has 24 divisors (see below), whose sum is σ = 19634116944. Its totient is φ = 7154127360.

The previous prime is 12132211283. The next prime is 12132211337. The reversal of 12132211311 is 11311223121.

12132211311 is a `hidden beast` number, since 1 + 21 + 322 + 11 + 311 = 666.

It is not a de Polignac number, because 12132211311 - 27 = 12132211183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132211391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1652386 + ... + 1659711.

It is an arithmetic number, because the mean of its divisors is an integer number (818088206).

Almost surely, 212132211311 is an apocalyptic number.

12132211311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12132211311 is a deficient number, since it is larger than the sum of its proper divisors (7501905633).

12132211311 is a wasteful number, since it uses less digits than its factorization.

12132211311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312151 (or 3312148 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 12132211311 its reverse (11311223121), we get a palindrome (23443434432).

The spelling of 12132211311 in words is "twelve billion, one hundred thirty-two million, two hundred eleven thousand, three hundred eleven".

Divisors: 1 3 9 11 33 37 99 111 333 407 1221 3663 3312097 9936291 29808873 36433067 109299201 122547589 327897603 367642767 1102928301 1348023479 4044070437 12132211311