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124312111131213 = 35511572473791
BaseRepresentation
bin11100010000111110101011…
…001110011010101001001101
3121022011010021202121222100000
4130100332223032122221031
5112243212200422144323
61120220110115354513
735120153000062245
oct3420765316325115
9538133252558300
10124312111131213
1136678519a18225
1211b3862a5b2a39
135449774228a25
14229aa49bbab25
15e5899b192e43
hex710fab39aa4d

124312111131213 has 12 divisors (see below), whose sum is σ = 186212380460288. Its totient is φ = 82874740753980.

The previous prime is 124312111131179. The next prime is 124312111131251. The reversal of 124312111131213 is 312131111213421.

124312111131213 is a `hidden beast` number, since 1 + 2 + 4 + 312 + 1 + 1 + 1 + 131 + 213 = 666.

It is not a de Polignac number, because 124312111131213 - 26 = 124312111131149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124312111131283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255786236653 + ... + 255786237138.

Almost surely, 2124312111131213 is an apocalyptic number.

It is an amenable number.

124312111131213 is a deficient number, since it is larger than the sum of its proper divisors (61900269329075).

124312111131213 is an frugal number, since it uses more digits than its factorization.

124312111131213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511572473806 (or 511572473794 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

Adding to 124312111131213 its reverse (312131111213421), we get a palindrome (436443222344634).

The spelling of 124312111131213 in words is "one hundred twenty-four trillion, three hundred twelve billion, one hundred eleven million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 9 27 81 243 511572473791 1534717421373 4604152264119 13812456792357 41437370377071 124312111131213