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12100000120231 = 14303845976377
BaseRepresentation
bin1011000000010100000000…
…1101010111110110100111
31120211202012210221112222011
42300011000031113312213
53041221300012321411
641422355135415051
72356124166011362
oct260050015276647
946752183845864
1012100000120231
113945643692271
121435089684487
1369a043241c6a
142db900a710d9
1515eb37180c21
hexb0140357da7

12100000120231 has 4 divisors (see below), whose sum is σ = 12100846110912. Its totient is φ = 12099154129552.

The previous prime is 12100000120207. The next prime is 12100000120309. The reversal of 12100000120231 is 13202100000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12100000120231 - 29 = 12100000119719 is a prime.

It is a super-2 number, since 2×121000001202312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100000126231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422973886 + ... + 423002491.

It is an arithmetic number, because the mean of its divisors is an integer number (3025211527728).

Almost surely, 212100000120231 is an apocalyptic number.

12100000120231 is a deficient number, since it is larger than the sum of its proper divisors (845990681).

12100000120231 is an equidigital number, since it uses as much as digits as its factorization.

12100000120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845990680.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12100000120231 its reverse (13202100000121), we get a palindrome (25302100120352).

The spelling of 12100000120231 in words is "twelve trillion, one hundred billion, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 14303 845976377 12100000120231