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23021211303 = 3215122973973
BaseRepresentation
bin10101011100001010…
…111100111010100111
32012102101110201000200
4111130022330322213
5334121412230203
614324212241543
71443326032056
oct253412747247
965371421020
1023021211303
119843967872
1245659102b3
13222b5a7a2c
14118565039d
158eb0ee9a3
hex55c2bcea7

23021211303 has 24 divisors (see below), whose sum is σ = 33619703520. Its totient is φ = 15179054400.

The previous prime is 23021211293. The next prime is 23021211341. The reversal of 23021211303 is 30311212032.

It is not a de Polignac number, because 23021211303 - 210 = 23021210279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021211373) 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, 274225 + ... + 348197.

It is an arithmetic number, because the mean of its divisors is an integer number (1400820980).

Almost surely, 223021211303 is an apocalyptic number.

23021211303 is a deficient number, since it is larger than the sum of its proper divisors (10598492217).

23021211303 is a wasteful number, since it uses less digits than its factorization.

23021211303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74359 (or 74356 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23021211303 its reverse (30311212032), we get a palindrome (53332423335).

The spelling of 23021211303 in words is "twenty-three billion, twenty-one million, two hundred eleven thousand, three hundred three".

Divisors: 1 3 9 151 229 453 687 1359 2061 34579 73973 103737 221919 311211 665757 11169923 16939817 33509769 50819451 100529307 152458353 2557912367 7673737101 23021211303