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12103120001 = 72439759219
BaseRepresentation
bin10110100010110011…
…01111010010000001
31011020111011012101202
423101121233102001
5144241344320001
65320551510545
7605632552100
oct132131572201
934214135352
1012103120001
115150994215
122419388455
1311ab62b48b
1482b5c2037
154ac83e96b
hex2d166f481

12103120001 has 24 divisors (see below), whose sum is σ = 14555328480. Its totient is φ = 10028212992.

The previous prime is 12103119989. The next prime is 12103120019. The reversal of 12103120001 is 10002130121.

It is not a de Polignac number, because 12103120001 - 26 = 12103119937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103120201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174770 + ... + 233988.

It is an arithmetic number, because the mean of its divisors is an integer number (606472020).

Almost surely, 212103120001 is an apocalyptic number.

It is an amenable number.

12103120001 is a deficient number, since it is larger than the sum of its proper divisors (2452208479).

12103120001 is an equidigital number, since it uses as much as digits as its factorization.

12103120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59373 (or 59366 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12103120001 its reverse (10002130121), we get a palindrome (22105250122).

The spelling of 12103120001 in words is "twelve billion, one hundred three million, one hundred twenty thousand, one".

Divisors: 1 7 43 49 97 301 679 2107 4171 4753 29197 59219 204379 414533 2546417 2901731 5744243 17824919 40209701 124774433 247002449 281467907 1729017143 12103120001