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23120423001 = 341321956717
BaseRepresentation
bin10101100010000101…
…011010100001011001
32012200022011011220000
4111202011122201121
5334322312014001
614342114523213
71445642232024
oct254205324131
965608134800
1023120423001
119894970005
124592b96509
132246003790
1411948b81bb
15904b9aa86
hex56215a859

23120423001 has 20 divisors (see below), whose sum is σ = 37194680292. Its totient is φ = 14227951968.

The previous prime is 23120422999. The next prime is 23120423059. The reversal of 23120423001 is 10032402132.

23120423001 is a `hidden beast` number, since 231 + 204 + 230 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5101387776 + 18019035225 = 71424^2 + 134235^2 .

It is not a de Polignac number, because 23120423001 - 21 = 23120422999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23120421001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10977306 + ... + 10979411.

Almost surely, 223120423001 is an apocalyptic number.

It is an amenable number.

23120423001 is a deficient number, since it is larger than the sum of its proper divisors (14074257291).

23120423001 is a wasteful number, since it uses less digits than its factorization.

23120423001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21956742 (or 21956733 counting only the distinct ones).

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

Adding to 23120423001 its reverse (10032402132), we get a palindrome (33152825133).

The spelling of 23120423001 in words is "twenty-three billion, one hundred twenty million, four hundred twenty-three thousand, one".

Divisors: 1 3 9 13 27 39 81 117 351 1053 21956717 65870151 197610453 285437321 592831359 856311963 1778494077 2568935889 7706807667 23120423001