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23120243321 = 717271716929
BaseRepresentation
bin10101100010000100…
…101110101001111001
32012200021211001102012
4111202010232221321
5334322240241241
614342111015305
71445640553130
oct254204565171
965607731365
1023120243321
11989485800a
124592b0a535
132245c6ca66
14119486c917
15904b626eb
hex56212ea79

23120243321 has 16 divisors (see below), whose sum is σ = 28080714240. Its totient is φ = 18582773760.

The previous prime is 23120243291. The next prime is 23120243339. The reversal of 23120243321 is 12334202132.

It is a cyclic number.

It is not a de Polignac number, because 23120243321 - 26 = 23120243257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23120243381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326216 + ... + 390713.

It is an arithmetic number, because the mean of its divisors is an integer number (1755044640).

Almost surely, 223120243321 is an apocalyptic number.

It is an amenable number.

23120243321 is a deficient number, since it is larger than the sum of its proper divisors (4960470919).

23120243321 is a wasteful number, since it uses less digits than its factorization.

23120243321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717224.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23120243321 its reverse (12334202132), we get a palindrome (35454445453).

The spelling of 23120243321 in words is "twenty-three billion, one hundred twenty million, two hundred forty-three thousand, three hundred twenty-one".

Divisors: 1 7 17 119 271 1897 4607 32249 716929 5018503 12187793 85314551 194287759 1360014313 3302891903 23120243321