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13121241411020 = 22517291330754707
BaseRepresentation
bin1011111011110000011011…
…1011101110110111001100
31201110101012212121100112212
42332330012323232313030
53204434300300123040
643523452020445552
72522656410525041
oct276740673566714
951411185540485
1013121241411020
1141a9761785336
12157ab992498b8
13742435105b02
1433510019b1c8
1517b4a8607d65
hexbef06eeedcc

13121241411020 has 48 divisors (see below), whose sum is σ = 30181516777440. Its totient is φ = 4769424866304.

The previous prime is 13121241411011. The next prime is 13121241411041. The reversal of 13121241411020 is 2011414212131.

It is a super-3 number, since 3×131212414110203 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665367494 + ... + 665387213.

It is an arithmetic number, because the mean of its divisors is an integer number (628781599530).

Almost surely, 213121241411020 is an apocalyptic number.

13121241411020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121241411020 is an abundant number, since it is smaller than the sum of its proper divisors (17060275366420).

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

13121241411020 is a wasteful number, since it uses less digits than its factorization.

13121241411020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330754762 (or 1330754760 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 13121241411020 its reverse (2011414212131), we get a palindrome (15132655623151).

The spelling of 13121241411020 in words is "thirteen trillion, one hundred twenty-one billion, two hundred forty-one million, four hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 17 20 29 34 58 68 85 116 145 170 290 340 493 580 986 1972 2465 4930 9860 1330754707 2661509414 5323018828 6653773535 13307547070 22622830019 26615094140 38591886503 45245660038 77183773006 90491320076 113114150095 154367546012 192959432515 226228300190 385918865030 452456600380 656062070551 771837730060 1312124141102 2624248282204 3280310352755 6560620705510 13121241411020