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13012223321 = 19719645829
BaseRepresentation
bin11000001111001011…
…01100010101011001
31020120211210102201002
430013211230111121
5203122112121241
65551105034345
7640312034066
oct140745542531
936524712632
1013012223321
115578073a79
1226319259b5
1312c4a91536
148b622bc6d
1551256889b
hex30796c559

13012223321 has 8 divisors (see below), whose sum is σ = 13889995200. Its totient is φ = 12153743280.

The previous prime is 13012223299. The next prime is 13012223369. The reversal of 13012223321 is 12332221031.

13012223321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13012223321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012223293 and 13012223302.

It is not an unprimeable number, because it can be changed into a prime (13012223221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4821566 + ... + 4824263.

It is an arithmetic number, because the mean of its divisors is an integer number (1736249400).

Almost surely, 213012223321 is an apocalyptic number.

It is an amenable number.

13012223321 is a deficient number, since it is larger than the sum of its proper divisors (877771879).

13012223321 is an equidigital number, since it uses as much as digits as its factorization.

13012223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645919.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13012223321 its reverse (12332221031), we get a palindrome (25344444352).

The spelling of 13012223321 in words is "thirteen billion, twelve million, two hundred twenty-three thousand, three hundred twenty-one".

Divisors: 1 19 71 1349 9645829 183270751 684853859 13012223321