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13313013123 = 3171607162439
BaseRepresentation
bin11000110011000010…
…00111010110000011
31021100210210010202010
430121201013112003
5204231112404443
610041012024003
7650623513224
oct143141072603
937323703663
1013313013123
115711937893
1226b6602003
1313421a7977
1490416924b
1552db81733
hex319847583

13313013123 has 16 divisors (see below), whose sum is σ = 18806653440. Its totient is φ = 8348013696.

The previous prime is 13313013121. The next prime is 13313013193. The reversal of 13313013123 is 32131031331.

It is not a de Polignac number, because 13313013123 - 21 = 13313013121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13313013123.

It is not an unprimeable number, because it can be changed into a prime (13313013121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738 + ... + 163176.

It is an arithmetic number, because the mean of its divisors is an integer number (1175415840).

Almost surely, 213313013123 is an apocalyptic number.

13313013123 is a deficient number, since it is larger than the sum of its proper divisors (5493640317).

13313013123 is a wasteful number, since it uses less digits than its factorization.

13313013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164066.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13313013123 its reverse (32131031331), we get a palindrome (45444044454).

The spelling of 13313013123 in words is "thirteen billion, three hundred thirteen million, thirteen thousand, one hundred twenty-three".

Divisors: 1 3 17 51 1607 4821 27319 81957 162439 487317 2761463 8284389 261039473 783118419 4437671041 13313013123