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12131113315 = 57433265441
BaseRepresentation
bin10110100110001001…
…00001100101100011
31011022102211102000011
423103010201211203
5144321031111230
65323431505351
7606422522206
oct132304414543
934272742004
1012131113315
115165773a92
122426828257
1311b437cc79
148311cb93d
154b001de2a
hex2d3121963

12131113315 has 8 divisors (see below), whose sum is σ = 14576933088. Its totient is φ = 9691825920.

The previous prime is 12131113243. The next prime is 12131113327. The reversal of 12131113315 is 51331113121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12131113315 - 29 = 12131112803 is a prime.

It is a super-2 number, since 2×121311133152 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629006 + ... + 1636435.

It is an arithmetic number, because the mean of its divisors is an integer number (1822116636).

Almost surely, 212131113315 is an apocalyptic number.

12131113315 is a deficient number, since it is larger than the sum of its proper divisors (2445819773).

12131113315 is an equidigital number, since it uses as much as digits as its factorization.

12131113315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266189.

The product of its digits is 270, while the sum is 22.

Adding to 12131113315 its reverse (51331113121), we get a palindrome (63462226436).

The spelling of 12131113315 in words is "twelve billion, one hundred thirty-one million, one hundred thirteen thousand, three hundred fifteen".

Divisors: 1 5 743 3715 3265441 16327205 2426222663 12131113315