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13220102011 = 53249435887
BaseRepresentation
bin11000100111111101…
…01011111101111011
31021010022221202122211
430103332223331323
5204033321231021
610023452355551
7645415004314
oct142376537573
937108852584
1013220102011
115674448346
12268b475bb7
131328b7698c
148d5aa160b
1552592c3e1
hex313fabf7b

13220102011 has 4 divisors (see below), whose sum is σ = 13469537952. Its totient is φ = 12970666072.

The previous prime is 13220101997. The next prime is 13220102039. The reversal of 13220102011 is 11020102231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11020102231 = 16427670853.

It is a cyclic number.

It is not a de Polignac number, because 13220102011 - 231 = 11072618363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13220101982 and 13220102000.

It is not an unprimeable number, because it can be changed into a prime (13220102041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124717891 + ... + 124717996.

It is an arithmetic number, because the mean of its divisors is an integer number (3367384488).

Almost surely, 213220102011 is an apocalyptic number.

13220102011 is a deficient number, since it is larger than the sum of its proper divisors (249435941).

13220102011 is an equidigital number, since it uses as much as digits as its factorization.

13220102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249435940.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13220102011 its reverse (11020102231), we get a palindrome (24240204242).

The spelling of 13220102011 in words is "thirteen billion, two hundred twenty million, one hundred two thousand, eleven".

Divisors: 1 53 249435887 13220102011