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12031212303203 = 13310990386167
BaseRepresentation
bin1010111100010011110000…
…1000101011001101100011
31120121011122212112101112012
42233010330020223031203
53034104410322200303
641331021310023135
72351140441141022
oct257047410531543
946534585471465
1012031212303203
113919454768205
1214238907a7aab
136936ccc96152
142d845703a8b9
1515ce5d1b55d8
hexaf13c22b363

12031212303203 has 4 divisors (see below), whose sum is σ = 12031302822480. Its totient is φ = 12031121783928.

The previous prime is 12031212303191. The next prime is 12031212303239. The reversal of 12031212303203 is 30230321213021.

12031212303203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12031212303203 - 218 = 12031212041059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031202303203) 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, 45059975 + ... + 45326192.

It is an arithmetic number, because the mean of its divisors is an integer number (3007825705620).

Almost surely, 212031212303203 is an apocalyptic number.

12031212303203 is a deficient number, since it is larger than the sum of its proper divisors (90519277).

12031212303203 is an equidigital number, since it uses as much as digits as its factorization.

12031212303203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90519276.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12031212303203 its reverse (30230321213021), we get a palindrome (42261533516224).

The spelling of 12031212303203 in words is "twelve trillion, thirty-one billion, two hundred twelve million, three hundred three thousand, two hundred three".

Divisors: 1 133109 90386167 12031212303203