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13123201133 = 72985375787
BaseRepresentation
bin11000011100011010…
…00010100001101101
31020212120121200122102
430032031002201231
5203334014414013
610010111424445
7643130240420
oct141615024155
936776550572
1013123201133
115624783279
122662b25125
131311a79993
148c6c799b7
1551c18ad58
hex30e34286d

13123201133 has 16 divisors (see below), whose sum is σ = 15533508480. Its totient is φ = 10847704896.

The previous prime is 13123201111. The next prime is 13123201159. The reversal of 13123201133 is 33110232131.

It is not a de Polignac number, because 13123201133 - 210 = 13123200109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123209133) 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, 135266 + ... + 211052.

It is an arithmetic number, because the mean of its divisors is an integer number (970844280).

Almost surely, 213123201133 is an apocalyptic number.

It is an amenable number.

13123201133 is a deficient number, since it is larger than the sum of its proper divisors (2410307347).

13123201133 is an equidigital number, since it uses as much as digits as its factorization.

13123201133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76676.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13123201133 its reverse (33110232131), we get a palindrome (46233433264).

The spelling of 13123201133 in words is "thirteen billion, one hundred twenty-three million, two hundred one thousand, one hundred thirty-three".

Divisors: 1 7 29 203 853 5971 24737 75787 173159 530509 2197823 15384761 64646311 452524177 1874743019 13123201133