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13011001211 = 134742150581
BaseRepresentation
bin11000001111000010…
…00001111101111011
31020120202111100021202
430013201001331323
5203121304014321
65551022524415
7640265454065
oct140741017573
936522440252
1013011001211
11557740986a
12263143670b
1312c47541b0
148b5dd0735
155123c670b
hex307841f7b

13011001211 has 16 divisors (see below), whose sum is σ = 14344245888. Its totient is φ = 11726467200.

The previous prime is 13011001193. The next prime is 13011001247. The reversal of 13011001211 is 11210011031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13011001211 - 214 = 13010984827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13011001192 and 13011001201.

It is not an unprimeable number, because it can be changed into a prime (13011007211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231941 + ... + 282521.

It is an arithmetic number, because the mean of its divisors is an integer number (896515368).

Almost surely, 213011001211 is an apocalyptic number.

13011001211 is a deficient number, since it is larger than the sum of its proper divisors (1333244677).

13011001211 is a wasteful number, since it uses less digits than its factorization.

13011001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51062.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 13011001211 its reverse (11210011031), we get a palindrome (24221012242).

The spelling of 13011001211 in words is "thirteen billion, eleven million, one thousand, two hundred eleven".

Divisors: 1 13 47 421 611 5473 19787 50581 257231 657553 2377307 21294601 30904991 276829813 1000846247 13011001211