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12210013103 = 28711425273
BaseRepresentation
bin10110101111100011…
…00000001110101111
31011111221021221011112
423113301200032233
5200001230404403
65335330542235
7611401253561
oct132761401657
934457257145
1012210013103
1151a6263622
12244913797b
1311c7816632
1483b889331
154b6e069d8
hex2d7c603af

12210013103 has 4 divisors (see below), whose sum is σ = 12210467088. Its totient is φ = 12209559120.

The previous prime is 12210013087. The next prime is 12210013133. The reversal of 12210013103 is 30131001221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30131001221 = 53568509457.

It is a cyclic number.

It is not a de Polignac number, because 12210013103 - 24 = 12210013087 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 (12210013133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183926 + ... + 241347.

It is an arithmetic number, because the mean of its divisors is an integer number (3052616772).

Almost surely, 212210013103 is an apocalyptic number.

12210013103 is a deficient number, since it is larger than the sum of its proper divisors (453985).

12210013103 is an equidigital number, since it uses as much as digits as its factorization.

12210013103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453984.

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

Adding to 12210013103 its reverse (30131001221), we get a palindrome (42341014324).

The spelling of 12210013103 in words is "twelve billion, two hundred ten million, thirteen thousand, one hundred three".

Divisors: 1 28711 425273 12210013103