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13121131200330 = 2351607272166173
BaseRepresentation
bin1011111011110000000001…
…0111010011111101001010
31201110100221012020001220110
42332330000113103331022
53204434034041402310
643523433042335150
72522653601665056
oct276740027237512
951410835201813
1013121131200330
1141a970554a41a
12157ab6835a4b6
1374241832889a
143350cd6acc66
1517b49dad7d20
hexbef005d3f4a

13121131200330 has 32 divisors (see below), whose sum is σ = 31510310961024. Its totient is φ = 3496790977856.

The previous prime is 13121131200299. The next prime is 13121131200371. The reversal of 13121131200330 is 3300213112131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13121131200297 and 13121131200306.

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, 136034877 + ... + 136131296.

It is an arithmetic number, because the mean of its divisors is an integer number (984697217532).

Almost surely, 213121131200330 is an apocalyptic number.

13121131200330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121131200330 is an abundant number, since it is smaller than the sum of its proper divisors (18389179760694).

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

13121131200330 is a wasteful number, since it uses less digits than its factorization.

13121131200330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272167790.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 13121131200330 its reverse (3300213112131), we get a palindrome (16421344312461).

The spelling of 13121131200330 in words is "thirteen trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1607 3214 4821 8035 9642 16070 24105 48210 272166173 544332346 816498519 1360830865 1632997038 2721661730 4082492595 8164985190 437371040011 874742080022 1312113120033 2186855200055 2624226240066 4373710400110 6560565600165 13121131200330