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13011131013 = 34337043671
BaseRepresentation
bin11000001111000011…
…00001101010000101
31020120202201221100020
430013201201222011
5203121322143023
65551025405353
7640266534366
oct140741415205
936522657306
1013011131013
115577498341
122631499859
1312c479b2ba
148b6025b6d
155123eede3
hex307861a85

13011131013 has 4 divisors (see below), whose sum is σ = 17348174688. Its totient is φ = 8674087340.

The previous prime is 13011130997. The next prime is 13011131053. The reversal of 13011131013 is 31013111031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13011131013 - 24 = 13011130997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13011130983 and 13011131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011131053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168521833 + ... + 2168521838.

It is an arithmetic number, because the mean of its divisors is an integer number (4337043672).

Almost surely, 213011131013 is an apocalyptic number.

It is an amenable number.

13011131013 is a deficient number, since it is larger than the sum of its proper divisors (4337043675).

13011131013 is an equidigital number, since it uses as much as digits as its factorization.

13011131013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337043674.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 13011131013 its reverse (31013111031), we get a palindrome (44024242044).

The spelling of 13011131013 in words is "thirteen billion, eleven million, one hundred thirty-one thousand, thirteen".

Divisors: 1 3 4337043671 13011131013