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13121201133330 = 2353014471450913
BaseRepresentation
bin1011111011110000010010…
…0010000101011100010010
31201110101010001211000221120
42332330010202011130102
53204434204442231310
643523444021303110
72522655411262263
oct276740442053422
951411101730846
1013121201133330
1141a9740a75094
12157ab87864a96
13742429972a64
143350d8ab496a
1517b4a4cedb70
hexbef04885712

13121201133330 has 32 divisors (see below), whose sum is σ = 31491008889984. Its totient is φ = 3498972950016.

The previous prime is 13121201133319. The next prime is 13121201133431. The reversal of 13121201133330 is 3333110212131.

It is a self number, because there is not a number n which added to its sum of digits gives 13121201133330.

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, 8317954 + ... + 9768866.

It is an arithmetic number, because the mean of its divisors is an integer number (984094027812).

Almost surely, 213121201133330 is an apocalyptic number.

13121201133330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121201133330 is an abundant number, since it is smaller than the sum of its proper divisors (18369807756654).

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

13121201133330 is a wasteful number, since it uses less digits than its factorization.

13121201133330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752370.

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

Adding to 13121201133330 its reverse (3333110212131), we get a palindrome (16454311345461).

The spelling of 13121201133330 in words is "thirteen trillion, one hundred twenty-one billion, two hundred one million, one hundred thirty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 301447 602894 904341 1450913 1507235 1808682 2901826 3014470 4352739 4521705 7254565 8705478 9043410 14509130 21763695 43527390 437373371111 874746742222 1312120113333 2186866855555 2624240226666 4373733711110 6560600566665 13121201133330