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12001431230 = 251200143123
BaseRepresentation
bin10110010110101011…
…10100111010111110
31010222101210212121222
423023111310322332
5144034331244410
65302520153342
7603256324265
oct131325647276
933871725558
1012001431230
1150a9549a08
1223ab308852
1311935460c9
1481bcb15dc
154a3954955
hex2cb574ebe

12001431230 has 8 divisors (see below), whose sum is σ = 21602576232. Its totient is φ = 4800572488.

The previous prime is 12001431203. The next prime is 12001431269. The reversal of 12001431230 is 3213410021.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12001431199 and 12001431208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600071552 + ... + 600071571.

It is an arithmetic number, because the mean of its divisors is an integer number (2700322029).

Almost surely, 212001431230 is an apocalyptic number.

12001431230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001431230 is a deficient number, since it is larger than the sum of its proper divisors (9601145002).

12001431230 is a wasteful number, since it uses less digits than its factorization.

12001431230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200143130.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12001431230 its reverse (3213410021), we get a palindrome (15214841251).

The spelling of 12001431230 in words is "twelve billion, one million, four hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 1200143123 2400286246 6000715615 12001431230