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13112132112231 = 354143753184649
BaseRepresentation
bin1011111011001110011111…
…1110100000111101100111
31201102111201000212000210020
42332303213332200331213
53204312121310042411
643515344052530223
72522214600002445
oct276634776407547
951374630760706
1013112132112231
1141a5907821329
121579276620973
13741612b07699
143348b8453b95
1517b123a3b606
hexbece7fa0f67

13112132112231 has 16 divisors (see below), whose sum is σ = 17515653784800. Its totient is φ = 8725016839680.

The previous prime is 13112132112199. The next prime is 13112132112281. The reversal of 13112132112231 is 13221123121131.

It is not a de Polignac number, because 13112132112231 - 25 = 13112132112199 is a prime.

It is a super-2 number, since 2×131121321122312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112132112281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70918795 + ... + 71103443.

It is an arithmetic number, because the mean of its divisors is an integer number (1094728361550).

Almost surely, 213112132112231 is an apocalyptic number.

13112132112231 is a deficient number, since it is larger than the sum of its proper divisors (4403521672569).

13112132112231 is a wasteful number, since it uses less digits than its factorization.

13112132112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228946.

The product of its digits is 432, while the sum is 24.

Adding to 13112132112231 its reverse (13221123121131), we get a palindrome (26333255233362).

The spelling of 13112132112231 in words is "thirteen trillion, one hundred twelve billion, one hundred thirty-two million, one hundred twelve thousand, two hundred thirty-one".

Divisors: 1 3 541 1623 43753 131259 184649 553947 23670373 71011119 99895109 299685327 8078947697 24236843091 4370710704077 13112132112231