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12311120103103 = 192113070870567
BaseRepresentation
bin1011001100100110011111…
…1100001100011010111111
31121120221011010102220021001
42303021213330030122333
53103201133221244403
642103352301351131
72410310014161463
oct263114774143277
947527133386231
1012311120103103
113a17131391158
121469b892684a7
136b3c1a2a7953
14307c0b9364a3
15165391994c1d
hexb3267f0c6bf

12311120103103 has 8 divisors (see below), whose sum is σ = 13020491208320. Its totient is φ = 11607890739480.

The previous prime is 12311120103089. The next prime is 12311120103131. The reversal of 12311120103103 is 30130102111321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12311120103103 - 217 = 12311119972031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311120107103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535431275 + ... + 1535439292.

It is an arithmetic number, because the mean of its divisors is an integer number (1627561401040).

Almost surely, 212311120103103 is an apocalyptic number.

12311120103103 is a deficient number, since it is larger than the sum of its proper divisors (709371105217).

12311120103103 is a wasteful number, since it uses less digits than its factorization.

12311120103103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070870797.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12311120103103 its reverse (30130102111321), we get a palindrome (42441222214424).

The spelling of 12311120103103 in words is "twelve trillion, three hundred eleven billion, one hundred twenty million, one hundred three thousand, one hundred three".

Divisors: 1 19 211 4009 3070870567 58346540773 647953689637 12311120103103