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12303431301 = 371767514379
BaseRepresentation
bin10110111010101011…
…10111011010000101
31011202110002001211210
423131111313122011
5200144134300201
65352505122033
7613614304050
oct133525673205
934673061753
1012303431301
115243a6a047
122474489319
131210c94385
1484a045a97
154c020b1d6
hex2dd577685

12303431301 has 32 divisors (see below), whose sum is σ = 20147235840. Its totient is φ = 6518198016.

The previous prime is 12303431297. The next prime is 12303431321. The reversal of 12303431301 is 10313430321.

It is not a de Polignac number, because 12303431301 - 22 = 12303431297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303431321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233271 + ... + 281108.

It is an arithmetic number, because the mean of its divisors is an integer number (629601120).

Almost surely, 212303431301 is an apocalyptic number.

It is an amenable number.

12303431301 is a deficient number, since it is larger than the sum of its proper divisors (7843804539).

12303431301 is a wasteful number, since it uses less digits than its factorization.

12303431301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514473.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12303431301 its reverse (10313430321), we get a palindrome (22616861622).

The spelling of 12303431301 in words is "twelve billion, three hundred three million, four hundred thirty-one thousand, three hundred one".

Divisors: 1 3 7 17 21 51 67 119 201 357 469 1139 1407 3417 7973 23919 514379 1543137 3600653 8744443 10801959 26233329 34463393 61211101 103390179 183633303 241243751 585877681 723731253 1757633043 4101143767 12303431301