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1313121313230 = 2351723111945551
BaseRepresentation
bin10011000110111100001…
…000010010000111001110
311122112101200102020011020
4103012330020102013032
5133003233024010410
62443123430535010
7163604241000036
oct23067410220716
94575350366136
101313121313230
11466989826011
121925a9807466
1396a996629cc
14477ac0928c6
1524255d3ba70
hex131bc2121ce

1313121313230 has 64 divisors (see below), whose sum is σ = 3481954449408. Its totient is φ = 315238668800.

The previous prime is 1313121313201. The next prime is 1313121313249. The reversal of 1313121313230 is 323131213131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313121313230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55961046 + ... + 55984505.

It is an arithmetic number, because the mean of its divisors is an integer number (54405538272).

Almost surely, 21313121313230 is an apocalyptic number.

1313121313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313121313230 is an abundant number, since it is smaller than the sum of its proper divisors (2168833136178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313121313230 is a wasteful number, since it uses less digits than its factorization.

1313121313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111945601.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1313121313230 its reverse (323131213131), we get a palindrome (1636252526361).

The spelling of 1313121313230 in words is "one trillion, three hundred thirteen billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 23 30 34 46 51 69 85 102 115 138 170 230 255 345 391 510 690 782 1173 1955 2346 3910 5865 11730 111945551 223891102 335836653 559727755 671673306 1119455510 1679183265 1903074367 2574747673 3358366530 3806148734 5149495346 5709223101 7724243019 9515371835 11418446202 12873738365 15448486038 19030743670 25747476730 28546115505 38621215095 43770710441 57092231010 77242430190 87541420882 131312131323 218853552205 262624262646 437707104410 656560656615 1313121313230