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23120001331 = 77345244621
BaseRepresentation
bin10101100010000011…
…110011100100110011
32012200021100202110121
4111202003303210303
5334322210020311
614342101511111
71445635524460
oct254203634463
965607322417
1023120001331
119894702219
124592a12497
132245bb687b
141194808667
15904b15b71
hex5620f3933

23120001331 has 8 divisors (see below), whose sum is σ = 26784816224. Its totient is φ = 19545675840.

The previous prime is 23120001323. The next prime is 23120001341. The reversal of 23120001331 is 13310002132.

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 23120001331 - 23 = 23120001323 is a prime.

It is a super-2 number, since 2×231200013312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120001301) 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 7 ways as a sum of consecutive naturals, for example, 22621800 + ... + 22622821.

It is an arithmetic number, because the mean of its divisors is an integer number (3348102028).

Almost surely, 223120001331 is an apocalyptic number.

23120001331 is a deficient number, since it is larger than the sum of its proper divisors (3664814893).

23120001331 is an equidigital number, since it uses as much as digits as its factorization.

23120001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45244701.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23120001331 its reverse (13310002132), we get a palindrome (36430003463).

The spelling of 23120001331 in words is "twenty-three billion, one hundred twenty million, one thousand, three hundred thirty-one".

Divisors: 1 7 73 511 45244621 316712347 3302857333 23120001331