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12203424311 = 13938724947
BaseRepresentation
bin10110101110110000…
…10111101000110111
31011111110220012001012
423113120113220313
5144443034034221
65334533422435
7611261252351
oct132730275067
934443805035
1012203424311
1151a2573341
122446a9aa1b
1311c634a640
1483aa520d1
154b655465b
hex2d7617a37

12203424311 has 4 divisors (see below), whose sum is σ = 13142149272. Its totient is φ = 11264699352.

The previous prime is 12203424307. The next prime is 12203424353. The reversal of 12203424311 is 11342430221.

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 12203424311 - 22 = 12203424307 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 (12203424371) 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, 469362461 + ... + 469362486.

It is an arithmetic number, because the mean of its divisors is an integer number (3285537318).

Almost surely, 212203424311 is an apocalyptic number.

12203424311 is a deficient number, since it is larger than the sum of its proper divisors (938724961).

12203424311 is an equidigital number, since it uses as much as digits as its factorization.

12203424311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938724960.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12203424311 its reverse (11342430221), we get a palindrome (23545854532).

The spelling of 12203424311 in words is "twelve billion, two hundred three million, four hundred twenty-four thousand, three hundred eleven".

Divisors: 1 13 938724947 12203424311