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13103233231023 = 3213111993446419
BaseRepresentation
bin1011111010101101010110…
…0011111110100010101111
31201101122201212001000200100
42332223111203332202233
53204140410201343043
643511313043002143
72521451222523405
oct276532543764257
951348655030610
1013103233231023
1141a2060616151
1215775b2369353
137408252a01c0
143342b2641475
1517aca2685cd3
hexbead58fe8af

13103233231023 has 12 divisors (see below), whose sum is σ = 20382807248440. Its totient is φ = 8063528142096.

The previous prime is 13103233231009. The next prime is 13103233231051. The reversal of 13103233231023 is 32013233230131.

13103233231023 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 323 + 3 + 2 + 310 + 23 = 666.

It is not a de Polignac number, because 13103233231023 - 25 = 13103233230991 is a prime.

It is a super-2 number, since 2×131032332310232 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103233231523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55996723093 + ... + 55996723326.

Almost surely, 213103233231023 is an apocalyptic number.

13103233231023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13103233231023 is a deficient number, since it is larger than the sum of its proper divisors (7279574017417).

13103233231023 is a wasteful number, since it uses less digits than its factorization.

13103233231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111993446438 (or 111993446435 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 13103233231023 its reverse (32013233230131), we get a palindrome (45116466461154).

The spelling of 13103233231023 in words is "thirteen trillion, one hundred three billion, two hundred thirty-three million, two hundred thirty-one thousand, twenty-three".

Divisors: 1 3 9 13 39 117 111993446419 335980339257 1007941017771 1455914803447 4367744410341 13103233231023