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230202201321 = 32197193367169
BaseRepresentation
bin1101011001100100011…
…1101101010011101001
3211000012012001110221100
43112121013231103221
512232423230420241
6253430424032013
722426424266041
oct3263107552351
9730165043840
10230202201321
11896a0161064
1238746302609
131892855c511
14b1db322721
155ec4bde9b6
hex35991ed4e9

230202201321 has 24 divisors (see below), whose sum is σ = 334380051720. Its totient is φ = 152607845376.

The previous prime is 230202201293. The next prime is 230202201373. The reversal of 230202201321 is 123102202032.

230202201321 is a `hidden beast` number, since 230 + 202 + 201 + 32 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 82619454096 + 147582747225 = 287436^2 + 384165^2 .

It is not a de Polignac number, because 230202201321 - 213 = 230202193129 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230202201294 and 230202201303.

It is not an unprimeable number, because it can be changed into a prime (230202201391) 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, 3393625 + ... + 3460793.

It is an arithmetic number, because the mean of its divisors is an integer number (13932502155).

Almost surely, 2230202201321 is an apocalyptic number.

It is an amenable number.

230202201321 is a deficient number, since it is larger than the sum of its proper divisors (104177850399).

230202201321 is a wasteful number, since it uses less digits than its factorization.

230202201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69305 (or 69302 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 230202201321 its reverse (123102202032), we get a palindrome (353304403353).

The spelling of 230202201321 in words is "two hundred thirty billion, two hundred two million, two hundred one thousand, three hundred twenty-one".

Divisors: 1 3 9 197 591 1773 1933 5799 17397 67169 201507 380801 604521 1142403 3427209 13232293 39696879 119090637 129837677 389513031 1168539093 25578022369 76734067107 230202201321