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11031022103 = 55343199321
BaseRepresentation
bin10100100011000000…
…00000101000010111
31001110202210222120012
422101200000220113
5140042420201403
65022333030435
7540234066203
oct122140005027
931422728505
1011031022103
1147507a71a2
12217a32541b
13106a49991a
14769067b03
1544866aed8
hex291800a17

11031022103 has 4 divisors (see below), whose sum is σ = 11031276768. Its totient is φ = 11030767440.

The previous prime is 11031022099. The next prime is 11031022133. The reversal of 11031022103 is 30122013011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30122013011 = 117012574311.

It is a cyclic number.

It is not a de Polignac number, because 11031022103 - 22 = 11031022099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031022133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44318 + ... + 155003.

It is an arithmetic number, because the mean of its divisors is an integer number (2757819192).

Almost surely, 211031022103 is an apocalyptic number.

11031022103 is a deficient number, since it is larger than the sum of its proper divisors (254665).

11031022103 is an equidigital number, since it uses as much as digits as its factorization.

11031022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254664.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11031022103 its reverse (30122013011), we get a palindrome (41153035114).

The spelling of 11031022103 in words is "eleven billion, thirty-one million, twenty-two thousand, one hundred three".

Divisors: 1 55343 199321 11031022103