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13123020310011 = 327326974253367
BaseRepresentation
bin1011111011110111000011…
…1101101100010111111011
31201110112210211220210012200
42332331300331230113323
53210001421144410021
643524344324441243
72523051451106343
oct276756075542773
951415724823180
1013123020310011
1141aa494937497
12157b3b4b49223
13742659818571
1433522c53dd23
1517b55e894126
hexbef70f6c5fb

13123020310011 has 24 divisors (see below), whose sum is σ = 19286569804320. Its totient is φ = 8596757702016.

The previous prime is 13123020310007. The next prime is 13123020310013. The reversal of 13123020310011 is 11001302032131.

13123020310011 is a `hidden beast` number, since 1 + 312 + 30 + 2 + 0 + 310 + 0 + 11 = 666.

It is not a de Polignac number, because 13123020310011 - 22 = 13123020310007 is a prime.

It is a super-2 number, since 2×131230203100112 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13123020310013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36949951 + ... + 37303416.

It is an arithmetic number, because the mean of its divisors is an integer number (803607075180).

Almost surely, 213123020310011 is an apocalyptic number.

13123020310011 is a deficient number, since it is larger than the sum of its proper divisors (6163549494309).

13123020310011 is a wasteful number, since it uses less digits than its factorization.

13123020310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74253715 (or 74253712 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13123020310011 its reverse (11001302032131), we get a palindrome (24124322342142).

The spelling of 13123020310011 in words is "thirteen trillion, one hundred twenty-three billion, twenty million, three hundred ten thousand, eleven".

Divisors: 1 3 9 73 219 269 657 807 2421 19637 58911 176733 74253367 222760101 668280303 5420495791 16261487373 19974155723 48784462119 59922467169 179767401507 1458113367779 4374340103337 13123020310011