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12032031213 = 324992679143
BaseRepresentation
bin10110011010010101…
…00011100111101101
31011001112101111220200
423031022203213231
5144120144444323
65305532104113
7604110402126
oct131512434755
934045344820
1012032031213
11511484a154
1223b9605039
13119999b1c7
14821d9904d
154a649b443
hex2cd2a39ed

12032031213 has 12 divisors (see below), whose sum is σ = 17414436000. Its totient is φ = 8005276296.

The previous prime is 12032031199. The next prime is 12032031217. The reversal of 12032031213 is 31213023021.

12032031213 is a `hidden beast` number, since 1 + 20 + 320 + 312 + 13 = 666.

It is not a de Polignac number, because 12032031213 - 210 = 12032030189 is a prime.

It is a super-2 number, since 2×120320312132 (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 (12032031217) 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 11 ways as a sum of consecutive naturals, for example, 1335081 + ... + 1344062.

It is an arithmetic number, because the mean of its divisors is an integer number (1451203000).

Almost surely, 212032031213 is an apocalyptic number.

It is an amenable number.

12032031213 is a deficient number, since it is larger than the sum of its proper divisors (5382404787).

12032031213 is a wasteful number, since it uses less digits than its factorization.

12032031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679648 (or 2679645 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12032031213 its reverse (31213023021), we get a palindrome (43245054234).

The spelling of 12032031213 in words is "twelve billion, thirty-two million, thirty-one thousand, two hundred thirteen".

Divisors: 1 3 9 499 1497 4491 2679143 8037429 24112287 1336892357 4010677071 12032031213