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13012231112103 = 3313072143212671
BaseRepresentation
bin1011110101011010010101…
…1010011100010110100111
31201001221211202111101211110
42331112211122130112213
53201143022131041403
643401423023440103
72512050134342346
oct275264532342647
951057752441743
1013012231112103
114167502264303
121561a35a56033
1373508197b462
1432db1c603b5d
1517872835a103
hexbd5a569c5a7

13012231112103 has 32 divisors (see below), whose sum is σ = 17976112709632. Its totient is φ = 8363698610400.

The previous prime is 13012231112093. The next prime is 13012231112137. The reversal of 13012231112103 is 30121113221031.

It is not a de Polignac number, because 13012231112103 - 29 = 13012231111591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13012231112103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012231112203) 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, 61078458 + ... + 61291128.

It is an arithmetic number, because the mean of its divisors is an integer number (561753522176).

Almost surely, 213012231112103 is an apocalyptic number.

13012231112103 is a deficient number, since it is larger than the sum of its proper divisors (4963881597529).

13012231112103 is a wasteful number, since it uses less digits than its factorization.

13012231112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215155.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13012231112103 its reverse (30121113221031), we get a palindrome (43133344333134).

The spelling of 13012231112103 in words is "thirteen trillion, twelve billion, two hundred thirty-one million, one hundred twelve thousand, one hundred three".

Divisors: 1 3 31 93 307 921 2143 6429 9517 28551 66433 199299 212671 638013 657901 1973703 6592801 19778403 20394931 61184793 65289997 195869991 455753953 1367261859 2023989907 6071969721 14128372543 42385117629 139916463571 419749390713 4337410370701 13012231112103