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13011133331 = 78112291903
BaseRepresentation
bin11000001111000011…
…00010001110010011
31020120202202001112002
430013201202032103
5203121322231311
65551025424215
7640266544220
oct140741421623
936522661462
1013011133331
11557749a059
12263149b06b
1312c479c381
148b6026947
1551240093b
hex307862393

13011133331 has 8 divisors (see below), whose sum is σ = 14888208384. Its totient is φ = 11138643720.

The previous prime is 13011133321. The next prime is 13011133351. The reversal of 13011133331 is 13333111031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13011133331 - 210 = 13011132307 is a prime.

It is a super-2 number, since 2×130111333312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13011133321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140275 + ... + 1151628.

It is an arithmetic number, because the mean of its divisors is an integer number (1861026048).

Almost surely, 213011133331 is an apocalyptic number.

13011133331 is a deficient number, since it is larger than the sum of its proper divisors (1877075053).

13011133331 is an equidigital number, since it uses as much as digits as its factorization.

13011133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292721.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 13011133331 its reverse (13333111031), we get a palindrome (26344244362).

The spelling of 13011133331 in words is "thirteen billion, eleven million, one hundred thirty-three thousand, three hundred thirty-one".

Divisors: 1 7 811 5677 2291903 16043321 1858733333 13011133331