Base | Representation |
---|---|
bin | 111001010101100100… |
… | …0001011001101111011 |
3 | 102202211011001202110012 |
4 | 1302223020023031323 |
5 | 4004132303200243 |
6 | 132322030012135 |
7 | 11616164563463 |
oct | 1625310131573 |
9 | 382734052405 |
10 | 123130131323 |
11 | 48245827111 |
12 | 1ba4404704b |
13 | b7c3832094 |
14 | 5d60d44ba3 |
15 | 3309ba1d18 |
hex | 1cab20b37b |
123130131323 has 8 divisors (see below), whose sum is σ = 125178211296. Its totient is φ = 121083004800.
The previous prime is 123130131307. The next prime is 123130131343. The reversal of 123130131323 is 323131031321.
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 123130131323 - 24 = 123130131307 is a prime.
It is a super-2 number, since 2×1231301313232 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123130131343) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24458 + ... + 496848.
It is an arithmetic number, because the mean of its divisors is an integer number (15647276412).
Almost surely, 2123130131323 is an apocalyptic number.
123130131323 is a deficient number, since it is larger than the sum of its proper divisors (2048079973).
123130131323 is an equidigital number, since it uses as much as digits as its factorization.
123130131323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 476725.
The product of its (nonzero) digits is 972, while the sum is 23.
Adding to 123130131323 its reverse (323131031321), we get a palindrome (446261162644).
The spelling of 123130131323 in words is "one hundred twenty-three billion, one hundred thirty million, one hundred thirty-one thousand, three hundred twenty-three".
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