Search a number
-
+
12310322131 = 23647827251
BaseRepresentation
bin10110111011100000…
…01001101111010011
31011202221001011021201
423131300021233103
5200202420302011
65353312532031
7614030003662
oct133560115723
934687034251
1012310322131
115247946248
122476851017
1312125379a3
1484ad1add9
154c0b1ccc1
hex2ddc09bd3

12310322131 has 8 divisors (see below), whose sum is σ = 12865423104. Its totient is φ = 11756877000.

The previous prime is 12310322069. The next prime is 12310322147. The reversal of 12310322131 is 13122301321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12310322131 is a prime.

It is a super-2 number, since 2×123103221312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310322099 and 12310322108.

It is not an unprimeable number, because it can be changed into a prime (12310322231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398745 + ... + 428506.

It is an arithmetic number, because the mean of its divisors is an integer number (1608177888).

Almost surely, 212310322131 is an apocalyptic number.

12310322131 is a deficient number, since it is larger than the sum of its proper divisors (555100973).

12310322131 is an equidigital number, since it uses as much as digits as its factorization.

12310322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827921.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12310322131 its reverse (13122301321), we get a palindrome (25432623452).

The spelling of 12310322131 in words is "twelve billion, three hundred ten million, three hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 23 647 14881 827251 19026773 535231397 12310322131