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12212423141 = 34735194303
BaseRepresentation
bin10110101111110101…
…01100100111100101
31011112002211101010012
423113322230213211
5200002340020031
65335454340005
7611430612122
oct132772544745
934462741105
1012212423141
1151a765a296
122449aba605
1311c817b5a9
1483bd15749
154b7230b2b
hex2d7eac9e5

12212423141 has 4 divisors (see below), whose sum is σ = 12247617792. Its totient is φ = 12177228492.

The previous prime is 12212423129. The next prime is 12212423143. The reversal of 12212423141 is 14132421221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12212423141 - 218 = 12212160997 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 (12212423143) 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, 17596805 + ... + 17597498.

It is an arithmetic number, because the mean of its divisors is an integer number (3061904448).

Almost surely, 212212423141 is an apocalyptic number.

It is an amenable number.

12212423141 is a deficient number, since it is larger than the sum of its proper divisors (35194651).

12212423141 is an equidigital number, since it uses as much as digits as its factorization.

12212423141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35194650.

The product of its digits is 768, while the sum is 23.

Adding to 12212423141 its reverse (14132421221), we get a palindrome (26344844362).

The spelling of 12212423141 in words is "twelve billion, two hundred twelve million, four hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 347 35194303 12212423141