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12312230003 = 103911850077
BaseRepresentation
bin10110111011101110…
…11011100001110011
31011210001122002101122
423131313123201303
5200203412330003
65353421452455
7614052141203
oct133567334163
934701562348
1012312230003
115248a296a7
12247741112b
131212a551c8
1484b296403
154c0d98238
hex2ddddb873

12312230003 has 4 divisors (see below), whose sum is σ = 12324081120. Its totient is φ = 12300378888.

The previous prime is 12312229999. The next prime is 12312230081. The reversal of 12312230003 is 30003221321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30003221321 = 112326717027.

It is a cyclic number.

It is not a de Polignac number, because 12312230003 - 22 = 12312229999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312260003) 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, 5924000 + ... + 5926077.

It is an arithmetic number, because the mean of its divisors is an integer number (3081020280).

Almost surely, 212312230003 is an apocalyptic number.

12312230003 is a deficient number, since it is larger than the sum of its proper divisors (11851117).

12312230003 is a wasteful number, since it uses less digits than its factorization.

12312230003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11851116.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12312230003 its reverse (30003221321), we get a palindrome (42315451324).

The spelling of 12312230003 in words is "twelve billion, three hundred twelve million, two hundred thirty thousand, three".

Divisors: 1 1039 11850077 12312230003