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12124004311 = 79153468409
BaseRepresentation
bin10110100101010010…
…11001111111010111
31011021221110020021201
423102221121333113
5144312221114221
65323015253331
7606305223226
oct132251317727
934257406251
1012124004311
115161758981
12242437a247
1311b2a61263
1483029acbd
154ae5b7891
hex2d2a59fd7

12124004311 has 4 divisors (see below), whose sum is σ = 12277472800. Its totient is φ = 11970535824.

The previous prime is 12124004287. The next prime is 12124004339. The reversal of 12124004311 is 11340042121.

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 12124004311 - 25 = 12124004279 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 (12124004351) 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, 76734126 + ... + 76734283.

It is an arithmetic number, because the mean of its divisors is an integer number (3069368200).

Almost surely, 212124004311 is an apocalyptic number.

12124004311 is a deficient number, since it is larger than the sum of its proper divisors (153468489).

12124004311 is an equidigital number, since it uses as much as digits as its factorization.

12124004311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153468488.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12124004311 its reverse (11340042121), we get a palindrome (23464046432).

The spelling of 12124004311 in words is "twelve billion, one hundred twenty-four million, four thousand, three hundred eleven".

Divisors: 1 79 153468409 12124004311