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12351132311 = 79769180617
BaseRepresentation
bin10111000000010111…
…10101001010010111
31011212202211112022212
423200023311022113
5200243342213221
65401331344035
7615033615050
oct134013651227
934782745285
1012351132311
11526898a571
12248845201b
13121ab2621b
14852501727
154c44ceb5b
hex2e02f5297

12351132311 has 8 divisors (see below), whose sum is σ = 14117102880. Its totient is φ = 10585542528.

The previous prime is 12351132259. The next prime is 12351132323. The reversal of 12351132311 is 11323115321.

12351132311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12351132311 - 218 = 12350870167 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 (12351132331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21926 + ... + 158691.

It is an arithmetic number, because the mean of its divisors is an integer number (1764637860).

Almost surely, 212351132311 is an apocalyptic number.

12351132311 is a deficient number, since it is larger than the sum of its proper divisors (1765970569).

12351132311 is an equidigital number, since it uses as much as digits as its factorization.

12351132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190393.

The product of its digits is 540, while the sum is 23.

Adding to 12351132311 its reverse (11323115321), we get a palindrome (23674247632).

The spelling of 12351132311 in words is "twelve billion, three hundred fifty-one million, one hundred thirty-two thousand, three hundred eleven".

Divisors: 1 7 9769 68383 180617 1264319 1764447473 12351132311