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12315441223 = 1719291314769
BaseRepresentation
bin10110111100000111…
…01011100001000111
31011210021200020100201
423132003223201013
5200210223104343
65354014351331
7614121344311
oct133603534107
934707606321
1012315441223
11524a8222a8
1224784bb547
13121360aa37
1484b8907b1
154c12ce94d
hex2de0eb847

12315441223 has 16 divisors (see below), whose sum is σ = 14199516000. Its totient is φ = 10602289152.

The previous prime is 12315441221. The next prime is 12315441239. The reversal of 12315441223 is 32214451321.

It is a cyclic number.

It is not a de Polignac number, because 12315441223 - 21 = 12315441221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12315441191 and 12315441200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315441221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648018 + ... + 666751.

It is an arithmetic number, because the mean of its divisors is an integer number (887469750).

Almost surely, 212315441223 is an apocalyptic number.

12315441223 is a deficient number, since it is larger than the sum of its proper divisors (1884074777).

12315441223 is a wasteful number, since it uses less digits than its factorization.

12315441223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314834.

The product of its digits is 5760, while the sum is 28.

Adding to 12315441223 its reverse (32214451321), we get a palindrome (44529892544).

The spelling of 12315441223 in words is "twelve billion, three hundred fifteen million, four hundred forty-one thousand, two hundred twenty-three".

Divisors: 1 17 19 29 323 493 551 9367 1314769 22351073 24980611 38128301 424670387 648181117 724437719 12315441223