Search a number
-
+
102201312211 = 182356062157
BaseRepresentation
bin101111100101110101…
…1000100001111010011
3100202210120210120220121
41133023223010033103
53133302013442321
6114541200451111
710245433551235
oct1371353041723
9322716716817
10102201312211
113a385a81599
1217983019a97
1398398b044b
144d37560255
1529d2615441
hex17cbac43d3

102201312211 has 4 divisors (see below), whose sum is σ = 102257376192. Its totient is φ = 102145248232.

The previous prime is 102201312193. The next prime is 102201312271. The reversal of 102201312211 is 112213102201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112213102201 = 233481601297.

It is a cyclic number.

It is not a de Polignac number, because 102201312211 - 215 = 102201279443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102201312271) 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, 28029256 + ... + 28032901.

It is an arithmetic number, because the mean of its divisors is an integer number (25564344048).

Almost surely, 2102201312211 is an apocalyptic number.

102201312211 is a deficient number, since it is larger than the sum of its proper divisors (56063981).

102201312211 is an equidigital number, since it uses as much as digits as its factorization.

102201312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56063980.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 102201312211 its reverse (112213102201), we get a palindrome (214414414412).

The spelling of 102201312211 in words is "one hundred two billion, two hundred one million, three hundred twelve thousand, two hundred eleven".

Divisors: 1 1823 56062157 102201312211