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23123021333 = 35716475223
BaseRepresentation
bin10101100010001111…
…010100111000010101
32012200111001012010112
4111202033110320111
5334323443140313
614342250332405
71446003303236
oct254217247025
965614035115
1023123021333
119896385195
124593a2a105
132246703359
141194d9308d
159050108a8
hex5623d4e15

23123021333 has 4 divisors (see below), whose sum is σ = 23129500128. Its totient is φ = 23116542540.

The previous prime is 23123021323. The next prime is 23123021353. The reversal of 23123021333 is 33312032132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23123021333 - 218 = 23122759189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23123021299 and 23123021308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123021323) 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 3 ways as a sum of consecutive naturals, for example, 3234041 + ... + 3241182.

It is an arithmetic number, because the mean of its divisors is an integer number (5782375032).

Almost surely, 223123021333 is an apocalyptic number.

It is an amenable number.

23123021333 is a deficient number, since it is larger than the sum of its proper divisors (6478795).

23123021333 is an equidigital number, since it uses as much as digits as its factorization.

23123021333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478794.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23123021333 its reverse (33312032132), we get a palindrome (56435053465).

The spelling of 23123021333 in words is "twenty-three billion, one hundred twenty-three million, twenty-one thousand, three hundred thirty-three".

Divisors: 1 3571 6475223 23123021333