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13111320141 = 323147879817
BaseRepresentation
bin11000011010111111…
…01101111001001101
31020211202021001222200
430031133231321031
5203322444221031
610005005032113
7642624245103
oct141537557115
936752231880
1013111320141
115618aa8977
12265ab55639
13130c479bca
148c5465c73
1551b0e08e6
hex30d7ede4d

13111320141 has 24 divisors (see below), whose sum is σ = 19555570944. Its totient is φ = 8456287680.

The previous prime is 13111320119. The next prime is 13111320143. The reversal of 13111320141 is 14102311131.

It is a happy number.

It is not a de Polignac number, because 13111320141 - 215 = 13111287373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111320143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1330665 + ... + 1340481.

It is an arithmetic number, because the mean of its divisors is an integer number (814815456).

Almost surely, 213111320141 is an apocalyptic number.

It is an amenable number.

13111320141 is a deficient number, since it is larger than the sum of its proper divisors (6444250803).

13111320141 is a wasteful number, since it uses less digits than its factorization.

13111320141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641 (or 14638 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 13111320141 its reverse (14102311131), we get a palindrome (27213631272).

The spelling of 13111320141 in words is "thirteen billion, one hundred eleven million, three hundred twenty thousand, one hundred forty-one".

Divisors: 1 3 9 31 93 279 4787 9817 14361 29451 43083 88353 148397 304327 445191 912981 1335573 2738943 46993979 140981937 422945811 1456813349 4370440047 13111320141