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11031022223 = 131970163709
BaseRepresentation
bin10100100011000000…
…00000101010001111
31001110202210222201122
422101200000222033
5140042420202343
65022333031155
7540234066434
oct122140005217
931422728648
1011031022223
1147507a72a1
12217a3254bb
13106a4999b0
14769067b8b
1544866b068
hex291800a8f

11031022223 has 16 divisors (see below), whose sum is σ = 12522837600. Its totient is φ = 9632649600.

The previous prime is 11031022199. The next prime is 11031022253. The reversal of 11031022223 is 32222013011.

It is a cyclic number.

It is not a de Polignac number, because 11031022223 - 26 = 11031022159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031022253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141293 + ... + 205001.

It is an arithmetic number, because the mean of its divisors is an integer number (782677350).

Almost surely, 211031022223 is an apocalyptic number.

11031022223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11031022223 is a deficient number, since it is larger than the sum of its proper divisors (1491815377).

11031022223 is a wasteful number, since it uses less digits than its factorization.

11031022223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64442.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11031022223 its reverse (32222013011), we get a palindrome (43253035234).

The spelling of 11031022223 in words is "eleven billion, thirty-one million, twenty-two thousand, two hundred twenty-three".

Divisors: 1 13 19 247 701 9113 13319 63709 173147 828217 1210471 15736123 44660009 580580117 848540171 11031022223