Search a number
-
+
1161111113 is a prime number
BaseRepresentation
bin100010100110101…
…0010011001001001
32222220211120000022
41011031102121021
54334221023423
6311114350225
740526165411
oct10515223111
92886746008
101161111113
11546464a68
12284a2b375
131567295c6
14b02c9641
156be07dc8
hex45352649

1161111113 has 2 divisors, whose sum is σ = 1161111114. Its totient is φ = 1161111112.

The previous prime is 1161111059. The next prime is 1161111131. The reversal of 1161111113 is 3111111611.

Together with next prime (1161111131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a m-pointer prime, because the next prime (1161111131) can be obtained adding 1161111113 to its product of digits (18).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 926776249 + 234334864 = 30443^2 + 15308^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161111113 - 210 = 1161110089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161111091 and 1161111100.

It is not a weakly prime, because it can be changed into another prime (1161111163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580555556 + 580555557.

It is an arithmetic number, because the mean of its divisors is an integer number (580555557).

Almost surely, 21161111113 is an apocalyptic number.

It is an amenable number.

1161111113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161111113 is an equidigital number, since it uses as much as digits as its factorization.

1161111113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18, while the sum is 17.

The square root of 1161111113 is about 34075.0805281514. The cubic root of 1161111113 is about 1051.0529461652.

Adding to 1161111113 its reverse (3111111611), we get a palindrome (4272222724).

The spelling of 1161111113 in words is "one billion, one hundred sixty-one million, one hundred eleven thousand, one hundred thirteen".