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123200013223 = 717600001889
BaseRepresentation
bin111001010111101001…
…0110000001110100111
3102210000000120010101201
41302233102300032213
54004303200410343
6132333003503331
711621003556010
oct1625722601647
9383000503351
10123200013223
1148281217451
121ba63527b47
13b80515bc11
145d6a336007
153310da794d
hex1caf4b03a7

123200013223 has 4 divisors (see below), whose sum is σ = 140800015120. Its totient is φ = 105600011328.

The previous prime is 123200013197. The next prime is 123200013239. The reversal of 123200013223 is 322310002321.

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

It is not a de Polignac number, because 123200013223 - 25 = 123200013191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123200013223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123200013263) 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, 8800000938 + ... + 8800000951.

It is an arithmetic number, because the mean of its divisors is an integer number (35200003780).

Almost surely, 2123200013223 is an apocalyptic number.

123200013223 is a deficient number, since it is larger than the sum of its proper divisors (17600001897).

123200013223 is an equidigital number, since it uses as much as digits as its factorization.

123200013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17600001896.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123200013223 its reverse (322310002321), we get a palindrome (445510015544).

The spelling of 123200013223 in words is "one hundred twenty-three billion, two hundred million, thirteen thousand, two hundred twenty-three".

Divisors: 1 7 17600001889 123200013223