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13011002003 = 17765353059
BaseRepresentation
bin11000001111000010…
…00010001010010011
31020120202111101101002
430013201002022103
5203121304031003
65551022532215
7640265456306
oct140741021223
936522441332
1013011002003
11557740a41a
12263143706b
1312c475466c
148b5dd0b3d
155123c6a88
hex307842293

13011002003 has 4 divisors (see below), whose sum is σ = 13776355080. Its totient is φ = 12245648928.

The previous prime is 13011001973. The next prime is 13011002023. The reversal of 13011002003 is 30020011031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30020011031 = 41732195391.

It is a cyclic number.

It is not a de Polignac number, because 13011002003 - 214 = 13010985619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382676513 + ... + 382676546.

It is an arithmetic number, because the mean of its divisors is an integer number (3444088770).

Almost surely, 213011002003 is an apocalyptic number.

13011002003 is a deficient number, since it is larger than the sum of its proper divisors (765353077).

13011002003 is an equidigital number, since it uses as much as digits as its factorization.

13011002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765353076.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 13011002003 its reverse (30020011031), we get a palindrome (43031013034).

The spelling of 13011002003 in words is "thirteen billion, eleven million, two thousand, three".

Divisors: 1 17 765353059 13011002003