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12313213043 = 16519745397
BaseRepresentation
bin10110111011110110…
…01011100001110011
31011210010111000212112
423131323023201303
5200204140304133
65353454515535
7614063404205
oct133573134163
934703430775
1012313213043
11524954022a
122477805bab
13121300a7a1
1484b470775
154c0ede648
hex2ddecb873

12313213043 has 4 divisors (see below), whose sum is σ = 12313974960. Its totient is φ = 12312451128.

The previous prime is 12313213021. The next prime is 12313213097. The reversal of 12313213043 is 34031231321.

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 12313213043 - 230 = 11239471219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12313210043) 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, 356180 + ... + 389217.

It is an arithmetic number, because the mean of its divisors is an integer number (3078493740).

Almost surely, 212313213043 is an apocalyptic number.

12313213043 is a deficient number, since it is larger than the sum of its proper divisors (761917).

12313213043 is an equidigital number, since it uses as much as digits as its factorization.

12313213043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761916.

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

Adding to 12313213043 its reverse (34031231321), we get a palindrome (46344444364).

The spelling of 12313213043 in words is "twelve billion, three hundred thirteen million, two hundred thirteen thousand, forty-three".

Divisors: 1 16519 745397 12313213043