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12203142343 = 73169598081
BaseRepresentation
bin10110101110101110…
…10010110011000111
31011111110100212020221
423113113102303013
5144443001023333
65334523405211
7611255666320
oct132727226307
934443325227
1012203142343
1151a23a0507
122446983807
1311c627c1b2
1483a9bb447
154b64ead2d
hex2d75d2cc7

12203142343 has 16 divisors (see below), whose sum is σ = 14400184320. Its totient is φ = 10119715200.

The previous prime is 12203142257. The next prime is 12203142353. The reversal of 12203142343 is 34324130221.

It is not a de Polignac number, because 12203142343 - 229 = 11666271431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203142353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1506063 + ... + 1514143.

It is an arithmetic number, because the mean of its divisors is an integer number (900011520).

Almost surely, 212203142343 is an apocalyptic number.

12203142343 is a deficient number, since it is larger than the sum of its proper divisors (2197041977).

12203142343 is an equidigital number, since it uses as much as digits as its factorization.

12203142343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15078.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12203142343 its reverse (34324130221), we get a palindrome (46527272564).

The spelling of 12203142343 in words is "twelve billion, two hundred three million, one hundred forty-two thousand, three hundred forty-three".

Divisors: 1 7 31 217 6959 8081 48713 56567 215729 250511 1510103 1753577 56235679 393649753 1743306049 12203142343