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13123022323 = 37354676279
BaseRepresentation
bin11000011100011000…
…10110110111110011
31020212120021121100211
430032030112313303
5203333443203243
610010103524551
7643125564205
oct141614266763
936776247324
1013123022323
1156246709a4
122662a59757
131311a16488
148c6c30775
1551c152d9d
hex30e316df3

13123022323 has 4 divisors (see below), whose sum is σ = 13477698640. Its totient is φ = 12768346008.

The previous prime is 13123022299. The next prime is 13123022359. The reversal of 13123022323 is 32322032131.

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

It is a cyclic number.

It is not a de Polignac number, because 13123022323 - 25 = 13123022291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123022294 and 13123022303.

It is not an unprimeable number, because it can be changed into a prime (13123022723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177338103 + ... + 177338176.

It is an arithmetic number, because the mean of its divisors is an integer number (3369424660).

Almost surely, 213123022323 is an apocalyptic number.

13123022323 is a deficient number, since it is larger than the sum of its proper divisors (354676317).

13123022323 is an equidigital number, since it uses as much as digits as its factorization.

13123022323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354676316.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13123022323 its reverse (32322032131), we get a palindrome (45445054454).

The spelling of 13123022323 in words is "thirteen billion, one hundred twenty-three million, twenty-two thousand, three hundred twenty-three".

Divisors: 1 37 354676279 13123022323