Search a number
-
+
11230333231 = 13863871787
BaseRepresentation
bin10100111010110000…
…10100100100101111
31001222122212001000211
422131120110210233
5140444431130411
65054213003251
7545204154205
oct123530244457
931878761024
1011230333231
114843259637
122215023527
13109c8724c0
1478770b075
1545addb221
hex29d61492f

11230333231 has 4 divisors (see below), whose sum is σ = 12094205032. Its totient is φ = 10366461432.

The previous prime is 11230333217. The next prime is 11230333237. The reversal of 11230333231 is 13233303211.

11230333231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13233303211 = 119331108967.

It is a cyclic number.

It is not a de Polignac number, because 11230333231 - 223 = 11221944623 is a prime.

It is a super-2 number, since 2×112303332312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230333237) 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 3 ways as a sum of consecutive naturals, for example, 431935881 + ... + 431935906.

It is an arithmetic number, because the mean of its divisors is an integer number (3023551258).

Almost surely, 211230333231 is an apocalyptic number.

11230333231 is a deficient number, since it is larger than the sum of its proper divisors (863871801).

11230333231 is an equidigital number, since it uses as much as digits as its factorization.

11230333231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863871800.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 11230333231 its reverse (13233303211), we get a palindrome (24463636442).

The spelling of 11230333231 in words is "eleven billion, two hundred thirty million, three hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 13 863871787 11230333231