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12112203103 = 71113471012549
BaseRepresentation
bin10110100011111000…
…11000110101011111
31011021010020200001221
423101330120311133
5144301210444403
65321514314211
7606103012330
oct132174306537
934233220057
1012112203103
115156028510
122420428967
1311b048b8b0
1482c8a8287
154ad535dbd
hex2d1f18d5f

12112203103 has 64 divisors (see below), whose sum is σ = 16779571200. Its totient is φ = 8438976000.

The previous prime is 12112203101. The next prime is 12112203107. The reversal of 12112203103 is 30130221121.

It is not a de Polignac number, because 12112203103 - 21 = 12112203101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112203101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4750473 + ... + 4753021.

It is an arithmetic number, because the mean of its divisors is an integer number (262180800).

Almost surely, 212112203103 is an apocalyptic number.

12112203103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12112203103 is a deficient number, since it is larger than the sum of its proper divisors (4667368097).

12112203103 is a wasteful number, since it uses less digits than its factorization.

12112203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12112203103 its reverse (30130221121), we get a palindrome (42242424224).

The spelling of 12112203103 in words is "twelve billion, one hundred twelve million, two hundred three thousand, one hundred three".

Divisors: 1 7 11 13 47 77 91 101 143 329 517 611 707 1001 1111 1313 2549 3619 4277 4747 6721 7777 9191 14443 17843 28039 33137 33229 47047 52217 61711 101101 119803 196273 231959 257449 364507 365519 431977 678821 838621 1317833 1557439 1802143 2551549 2831939 3346837 4751747 9224831 10902073 12100103 17131829 19823573 23427859 36815207 84700721 119922803 133101133 157301339 257706449 931707931 1101109373 1730314729 12112203103