Search a number
-
+
12351030311 = 42193292727
BaseRepresentation
bin10111000000010110…
…11100010000100111
31011212202122100102002
423200023130100213
5200243330432221
65401325235515
7615033011504
oct134013342047
934782570362
1012351030311
11526891a974
122488402b9b
13121aabb979
148524b64ab
154c44ae80b
hex2e02dc427

12351030311 has 4 divisors (see below), whose sum is σ = 12351365232. Its totient is φ = 12350695392.

The previous prime is 12351030301. The next prime is 12351030319. The reversal of 12351030311 is 11303015321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12351030311 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 (12351030319) 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, 104171 + ... + 188556.

It is an arithmetic number, because the mean of its divisors is an integer number (3087841308).

Almost surely, 212351030311 is an apocalyptic number.

12351030311 is a deficient number, since it is larger than the sum of its proper divisors (334921).

12351030311 is an equidigital number, since it uses as much as digits as its factorization.

12351030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334920.

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 12351030311 its reverse (11303015321), we get a palindrome (23654045632).

The spelling of 12351030311 in words is "twelve billion, three hundred fifty-one million, thirty thousand, three hundred eleven".

Divisors: 1 42193 292727 12351030311