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13012104203423 = 1317972272673977
BaseRepresentation
bin1011110101011001110111…
…0110010100110010011111
31201001221111220200202211222
42331112131312110302133
53201142242134002143
643401402251403555
72512044033545243
oct275263566246237
951057456622758
1013012104203423
1141674476639a6
1215619bb4535bb
137350615a5a70
1432db0980a423
1517871c13c768
hexbd59dd94c9f

13012104203423 has 32 divisors (see below), whose sum is σ = 15056335836864. Its totient is φ = 11138799992832.

The previous prime is 13012104203291. The next prime is 13012104203471. The reversal of 13012104203423 is 32430240121031.

It is a cyclic number.

It is not a de Polignac number, because 13012104203423 - 28 = 13012104203167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012104203392 and 13012104203401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012104203123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3529211 + ... + 6203187.

It is an arithmetic number, because the mean of its divisors is an integer number (470510494902).

Almost surely, 213012104203423 is an apocalyptic number.

13012104203423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13012104203423 is a deficient number, since it is larger than the sum of its proper divisors (2044231633441).

13012104203423 is a wasteful number, since it uses less digits than its factorization.

13012104203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674331.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 13012104203423 its reverse (32430240121031), we get a palindrome (45442344324454).

The spelling of 13012104203423 in words is "thirteen trillion, twelve billion, one hundred four million, two hundred three thousand, four hundred twenty-three".

Divisors: 1 13 17 97 221 227 1261 1649 2951 3859 21437 22019 50167 286247 374323 2673977 4866199 34761701 45457609 259375769 590948917 606992779 3371884997 4409388073 7890906127 10318877243 57322044949 58878299563 134145404159 765417894319 1000931092571 13012104203423