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12320102313231 = 35389870617081
BaseRepresentation
bin1011001101000111111101…
…0100100110110100001111
31121121210100010001110011020
42303101333110212310033
53103323032143010411
642111435445325223
72411045422540146
oct263217724466417
947553303043136
1012320102313231
113a1aa20631609
12146b875406813
136b4a1c16979b
1430842083a75d
1516571a30a606
hexb347f526d0f

12320102313231 has 16 divisors (see below), whose sum is σ = 16924796074080. Its totient is φ = 7967887516160.

The previous prime is 12320102313227. The next prime is 12320102313251. The reversal of 12320102313231 is 13231320102321.

It is a cyclic number.

It is not a de Polignac number, because 12320102313231 - 22 = 12320102313227 is a prime.

It is a super-2 number, since 2×123201023132312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320102313251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435294390 + ... + 435322691.

It is an arithmetic number, because the mean of its divisors is an integer number (1057799754630).

Almost surely, 212320102313231 is an apocalyptic number.

12320102313231 is a deficient number, since it is larger than the sum of its proper divisors (4604693760849).

12320102313231 is an equidigital number, since it uses as much as digits as its factorization.

12320102313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870617226.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12320102313231 its reverse (13231320102321), we get a palindrome (25551422415552).

The spelling of 12320102313231 in words is "twelve trillion, three hundred twenty billion, one hundred two million, three hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 53 89 159 267 4717 14151 870617081 2611851243 46142705293 77484920209 138428115879 232454760627 4106700771077 12320102313231