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12311421203 = 194315069059
BaseRepresentation
bin10110111011101000…
…10110000100010011
31011210000002222221002
423131310112010103
5200203210434303
65353352252215
7614042232164
oct133564260423
934700088832
1012311421203
115248526a74
1224770a106b
131212831023
1484b12576b
154c0c88788
hex2ddd16113

12311421203 has 8 divisors (see below), whose sum is σ = 13260772800. Its totient is φ = 11392207848.

The previous prime is 12311421173. The next prime is 12311421211. The reversal of 12311421203 is 30212411321.

12311421203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12311421203 - 224 = 12294643987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311421103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7533713 + ... + 7535346.

It is an arithmetic number, because the mean of its divisors is an integer number (1657596600).

Almost surely, 212311421203 is an apocalyptic number.

12311421203 is a deficient number, since it is larger than the sum of its proper divisors (949351597).

12311421203 is a wasteful number, since it uses less digits than its factorization.

12311421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15069121.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12311421203 its reverse (30212411321), we get a palindrome (42523832524).

The spelling of 12311421203 in words is "twelve billion, three hundred eleven million, four hundred twenty-one thousand, two hundred three".

Divisors: 1 19 43 817 15069059 286312121 647969537 12311421203