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21234310301 = 191117595279
BaseRepresentation
bin10011110001101010…
…011101110010011101
32000210212002201200002
4103301222131302131
5321441440412201
613431020544045
71351130442131
oct236152356235
960725081602
1021234310301
11900723a686
1241473b2025
132005322c69
1410561c73c1
158442d276b
hex4f1a9dc9d

21234310301 has 4 divisors (see below), whose sum is σ = 22351905600. Its totient is φ = 20116715004.

The previous prime is 21234310297. The next prime is 21234310327. The reversal of 21234310301 is 10301343212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21234310301 - 22 = 21234310297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21234370301) 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, 558797621 + ... + 558797658.

It is an arithmetic number, because the mean of its divisors is an integer number (5587976400).

Almost surely, 221234310301 is an apocalyptic number.

It is an amenable number.

21234310301 is a deficient number, since it is larger than the sum of its proper divisors (1117595299).

21234310301 is a wasteful number, since it uses less digits than its factorization.

21234310301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117595298.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21234310301 its reverse (10301343212), we get a palindrome (31535653513).

The spelling of 21234310301 in words is "twenty-one billion, two hundred thirty-four million, three hundred ten thousand, three hundred one".

Divisors: 1 19 1117595279 21234310301