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13123303033 = 68947190339
BaseRepresentation
bin11000011100011010…
…11011011001111001
31020212120210212102111
430032031123121321
5203334031144113
610010113532321
7643131143461
oct141615333171
936776725374
1013123303033
115624842895
122662b740a1
131311ab4189
148c6ca4ba1
1551c1ab13d
hex30e35b679

13123303033 has 4 divisors (see below), whose sum is σ = 13123562320. Its totient is φ = 13123043748.

The previous prime is 13123303031. The next prime is 13123303043. The reversal of 13123303033 is 33030332131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33030332131 = 231436101397.

It is a cyclic number.

It is not a de Polignac number, because 13123303033 - 21 = 13123303031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123302995 and 13123303013.

It is not an unprimeable number, because it can be changed into a prime (13123303031) 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, 26223 + ... + 164116.

It is an arithmetic number, because the mean of its divisors is an integer number (3280890580).

Almost surely, 213123303033 is an apocalyptic number.

It is an amenable number.

13123303033 is a deficient number, since it is larger than the sum of its proper divisors (259287).

13123303033 is an equidigital number, since it uses as much as digits as its factorization.

13123303033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259286.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 13123303033 its reverse (33030332131), we get a palindrome (46153635164).

The spelling of 13123303033 in words is "thirteen billion, one hundred twenty-three million, three hundred three thousand, thirty-three".

Divisors: 1 68947 190339 13123303033