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12031030323 = 3213102829319
BaseRepresentation
bin10110011010001101…
…01111010000110011
31011001110111122221200
423031012233100303
5144114420432243
65305454422243
7604066033104
oct131506572063
934043448850
1012031030323
115114226174
1223b9201983
13119970a770
14821bb83ab
154a634ead3
hex2cd1af433

12031030323 has 12 divisors (see below), whose sum is σ = 18714936240. Its totient is φ = 7403710896.

The previous prime is 12031030307. The next prime is 12031030331. The reversal of 12031030323 is 32303013021.

12031030323 is a `hidden beast` number, since 1 + 2 + 0 + 310 + 30 + 323 = 666.

It is not a de Polignac number, because 12031030323 - 24 = 12031030307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031030296 and 12031030305.

It is not an unprimeable number, because it can be changed into a prime (12031030423) 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, 51414543 + ... + 51414776.

It is an arithmetic number, because the mean of its divisors is an integer number (1559578020).

Almost surely, 212031030323 is an apocalyptic number.

12031030323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12031030323 is a deficient number, since it is larger than the sum of its proper divisors (6683905917).

12031030323 is a wasteful number, since it uses less digits than its factorization.

12031030323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102829338 (or 102829335 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12031030323 its reverse (32303013021), we get a palindrome (44334043344).

The spelling of 12031030323 in words is "twelve billion, thirty-one million, thirty thousand, three hundred twenty-three".

Divisors: 1 3 9 13 39 117 102829319 308487957 925463871 1336781147 4010343441 12031030323