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23001001232213 = 42349543129737
BaseRepresentation
bin1010011101011010101101…
…00000100000011101010101
310000102212121022201122111102
411032231112200200131111
511003322022303412323
6120530303013315445
74562524152431234
oct516552640403525
9100385538648442
1023001001232213
117368740619354
1226b58b8935b85
13caaca6392924
1459737c102b1b
1529d497451328
hex14eb56820755

23001001232213 has 4 divisors (see below), whose sum is σ = 23001544404300. Its totient is φ = 23000458060128.

The previous prime is 23001001232207. The next prime is 23001001232219. The reversal of 23001001232213 is 31223210010032.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23001001232207) and next prime (23001001232219).

It can be written as a sum of positive squares in 2 ways, for example, as 15503607001444 + 7497394230769 = 3937462^2 + 2738137^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001001232213 - 24 = 23001001232197 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 (23001001232219) 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, 271522520 + ... + 271607217.

It is an arithmetic number, because the mean of its divisors is an integer number (5750386101075).

Almost surely, 223001001232213 is an apocalyptic number.

It is an amenable number.

23001001232213 is a deficient number, since it is larger than the sum of its proper divisors (543172087).

23001001232213 is an equidigital number, since it uses as much as digits as its factorization.

23001001232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543172086.

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

Adding to 23001001232213 its reverse (31223210010032), we get a palindrome (54224211242245).

The spelling of 23001001232213 in words is "twenty-three trillion, one billion, one million, two hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 42349 543129737 23001001232213