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21203010301 = 111939987287
BaseRepresentation
bin10011101111110011…
…000100001011111101
32000201200012112010211
4103233303010023331
5321410432312201
613423542032421
71350300420364
oct235763041375
960650175124
1021203010301
118aa0601510
124138a18711
131ccb9b4355
141051d9a7db
1584169d651
hex4efcc42fd

21203010301 has 8 divisors (see below), whose sum is σ = 23250406464. Its totient is φ = 19175589120.

The previous prime is 21203010289. The next prime is 21203010349. The reversal of 21203010301 is 10301030212.

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 21203010301 - 213 = 21203002109 is a prime.

It is a super-2 number, since 2×212030103012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21203010001) 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, 4991521 + ... + 4995766.

It is an arithmetic number, because the mean of its divisors is an integer number (2906300808).

Almost surely, 221203010301 is an apocalyptic number.

It is an amenable number.

21203010301 is a deficient number, since it is larger than the sum of its proper divisors (2047396163).

21203010301 is a wasteful number, since it uses less digits than its factorization.

21203010301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987491.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21203010301 its reverse (10301030212), we get a palindrome (31504040513).

The spelling of 21203010301 in words is "twenty-one billion, two hundred three million, ten thousand, three hundred one".

Divisors: 1 11 193 2123 9987287 109860157 1927546391 21203010301