Search a number
-
+
11210002001 = 111019091091
BaseRepresentation
bin10100111000010101…
…10000111001010001
31001221020121002211022
422130022300321101
5140424230031001
65052205125225
7544536305402
oct123412607121
931836532738
1011210002001
114832832470
12220a259815
1310985a43a3
14784b379a9
1545922211b
hex29c2b0e51

11210002001 has 4 divisors (see below), whose sum is σ = 12229093104. Its totient is φ = 10190910900.

The previous prime is 11210001989. The next prime is 11210002043. The reversal of 11210002001 is 10020001211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11210002001 - 26 = 11210001937 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 11210002001.

It is not an unprimeable number, because it can be changed into a prime (11210002051) 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, 509545535 + ... + 509545556.

It is an arithmetic number, because the mean of its divisors is an integer number (3057273276).

Almost surely, 211210002001 is an apocalyptic number.

11210002001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11210002001 is a deficient number, since it is larger than the sum of its proper divisors (1019091103).

11210002001 is a wasteful number, since it uses less digits than its factorization.

11210002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019091102.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11210002001 its reverse (10020001211), we get a palindrome (21230003212).

The spelling of 11210002001 in words is "eleven billion, two hundred ten million, two thousand, one".

Divisors: 1 11 1019091091 11210002001