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230031203101321 = 379360646243897
BaseRepresentation
bin110100010011011001010000…
…001001011110101010001001
31010011110202202001110121011211
4310103121100021132222021
5220122312400443220241
62133122513103253121
766311130440005636
oct6423312011365211
91104422661417154
10230031203101321
116732775a282246
12219717085aa1a1
139b47b0710219b
1440b37d911518d
151b8d98d3e1781
hexd1365025ea89

230031203101321 has 4 divisors (see below), whose sum is σ = 230091849349012. Its totient is φ = 229970556853632.

The previous prime is 230031203101309. The next prime is 230031203101339. The reversal of 230031203101321 is 123101302130032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37593575449600 + 192437627651721 = 6131360^2 + 13872189^2 .

It is a cyclic number.

It is not a de Polignac number, because 230031203101321 - 223 = 230031194712713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230031203101292 and 230031203101301.

It is not an unprimeable number, because it can be changed into a prime (230031203131321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30323118156 + ... + 30323125741.

It is an arithmetic number, because the mean of its divisors is an integer number (57522962337253).

Almost surely, 2230031203101321 is an apocalyptic number.

It is an amenable number.

230031203101321 is a deficient number, since it is larger than the sum of its proper divisors (60646247691).

230031203101321 is an equidigital number, since it uses as much as digits as its factorization.

230031203101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60646247690.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 230031203101321 its reverse (123101302130032), we get a palindrome (353132505231353).

The spelling of 230031203101321 in words is "two hundred thirty trillion, thirty-one billion, two hundred three million, one hundred one thousand, three hundred twenty-one".

Divisors: 1 3793 60646243897 230031203101321