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123013313013 = 3593671893707
BaseRepresentation
bin111001010010000101…
…0100011000111110101
3102202112000020202212010
41302210022203013311
54003412402004023
6132302254114433
711613245623353
oct1624412430765
9382460222763
10123013313013
1148195898858
121ba10aaba19
13b7a5580416
145d4d6167d3
1532ee7c9093
hex1ca42a31f5

123013313013 has 16 divisors (see below), whose sum is σ = 167252290560. Its totient is φ = 80399181936.

The previous prime is 123013313011. The next prime is 123013313023. The reversal of 123013313013 is 310313310321.

It is not a de Polignac number, because 123013313013 - 21 = 123013313011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013313011) 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, 881895 + ... + 1011812.

It is an arithmetic number, because the mean of its divisors is an integer number (10453268160).

Almost surely, 2123013313013 is an apocalyptic number.

It is an amenable number.

123013313013 is a deficient number, since it is larger than the sum of its proper divisors (44238977547).

123013313013 is a wasteful number, since it uses less digits than its factorization.

123013313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894136.

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

Adding to 123013313013 its reverse (310313310321), we get a palindrome (433326623334).

The spelling of 123013313013 in words is "one hundred twenty-three billion, thirteen million, three hundred thirteen thousand, thirteen".

Divisors: 1 3 59 177 367 1101 21653 64959 1893707 5681121 111728713 335186139 694990469 2084971407 41004437671 123013313013