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21203002202301 = 334325871815349
BaseRepresentation
bin1001101001000101101010…
…11010100001100010111101
32210001222122200100021222000
410310202311122201202331
510234342222030433201
6113032305202212513
74315603106022213
oct464426532414275
983058580307860
1021203002202301
116835162a89157
12246534a654139
13baa5858744ba
145343333a2cb3
1526b8133ecd86
hex1348b56a18bd

21203002202301 has 16 divisors (see below), whose sum is σ = 31411945032000. Its totient is φ = 14135294338704.

The previous prime is 21203002202293. The next prime is 21203002202329. The reversal of 21203002202301 is 10320220030212.

21203002202301 is a `hidden beast` number, since 2 + 120 + 300 + 220 + 23 + 0 + 1 = 666.

It is not a de Polignac number, because 21203002202301 - 23 = 21203002202293 is a prime.

It is a super-2 number, since 2×212030022023012 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21203002202341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10772175 + ... + 12587523.

It is an arithmetic number, because the mean of its divisors is an integer number (1963246564500).

Almost surely, 221203002202301 is an apocalyptic number.

It is an amenable number.

21203002202301 is a deficient number, since it is larger than the sum of its proper divisors (10208942829699).

21203002202301 is a wasteful number, since it uses less digits than its factorization.

21203002202301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247945 (or 2247939 counting only the distinct ones).

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

Adding to 21203002202301 its reverse (10320220030212), we get a palindrome (31523222232513).

The spelling of 21203002202301 in words is "twenty-one trillion, two hundred three billion, two million, two hundred two thousand, three hundred one".

Divisors: 1 3 9 27 432587 1297761 1815349 3893283 5446047 11679849 16338141 49014423 785296377863 2355889133589 7067667400767 21203002202301