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12323313441 = 3213738925693
BaseRepresentation
bin10110111101000011…
…01101011100100001
31011210211111012000100
423132201231130201
5200214232012231
65354455213013
7614245302345
oct133641553441
934724435010
1012323313441
11525420986a
12247b077169
131215135c5a
1484c93d625
154c1d371e6
hex2de86d721

12323313441 has 24 divisors (see below), whose sum is σ = 17977064040. Its totient is φ = 8134292736.

The previous prime is 12323313433. The next prime is 12323313463. The reversal of 12323313441 is 14431332321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3053667600 + 9269645841 = 55260^2 + 96279^2 .

It is not a de Polignac number, because 12323313441 - 23 = 12323313433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12323313641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466791 + ... + 492483.

It is an arithmetic number, because the mean of its divisors is an integer number (749044335).

Almost surely, 212323313441 is an apocalyptic number.

It is an amenable number.

12323313441 is a deficient number, since it is larger than the sum of its proper divisors (5653750599).

12323313441 is a wasteful number, since it uses less digits than its factorization.

12323313441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26225 (or 26222 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 12323313441 its reverse (14431332321), we get a palindrome (26754645762).

The spelling of 12323313441 in words is "twelve billion, three hundred twenty-three million, three hundred thirteen thousand, four hundred forty-one".

Divisors: 1 3 9 137 389 411 1167 1233 3501 25693 53293 77079 159879 231237 479637 3519941 9994577 10559823 29983731 31679469 89951193 1369257049 4107771147 12323313441