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13121302211 = 65931676287
BaseRepresentation
bin11000011100001011…
…10010111011000011
31020212110001012210222
430032011302323003
5203333023132321
610010003013255
7643105141253
oct141605627303
936773035728
1013121302211
1156236a6616
12266236a22b
131311563564
148c6903963
1551be133ab
hex30e172ec3

13121302211 has 8 divisors (see below), whose sum is σ = 13147453440. Its totient is φ = 13095171208.

The previous prime is 13121302199. The next prime is 13121302217. The reversal of 13121302211 is 11220312131.

13121302211 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 not a de Polignac number, because 13121302211 - 222 = 13117107907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13121302211.

It is not an unprimeable number, because it can be changed into a prime (13121302217) 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, 2083910 + ... + 2090196.

It is an arithmetic number, because the mean of its divisors is an integer number (1643431680).

Almost surely, 213121302211 is an apocalyptic number.

13121302211 is a deficient number, since it is larger than the sum of its proper divisors (26151229).

13121302211 is an equidigital number, since it uses as much as digits as its factorization.

13121302211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13121302211 its reverse (11220312131), we get a palindrome (24341614342).

The spelling of 13121302211 in words is "thirteen billion, one hundred twenty-one million, three hundred two thousand, two hundred eleven".

Divisors: 1 659 3167 6287 2087053 4143133 19910929 13121302211