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121230524013 = 3293759962873
BaseRepresentation
bin111000011100111100…
…1101111111001101101
3102120220202121201002220
41300321321233321231
53441240003232023
6131405330505553
711521130310654
oct1607171577155
9376822551086
10121230524013
114746051a015
121b5b3a352b9
13b5801081a1
145c2094019b
1532480203e3
hex1c39e6fe6d

121230524013 has 32 divisors (see below), whose sum is σ = 172023264000. Its totient is φ = 75796471296.

The previous prime is 121230524011. The next prime is 121230524021. The reversal of 121230524013 is 310425032121.

It is not a de Polignac number, because 121230524013 - 21 = 121230524011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230524011) 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, 1896745 + ... + 1959617.

It is an arithmetic number, because the mean of its divisors is an integer number (5375727000).

Almost surely, 2121230524013 is an apocalyptic number.

It is an amenable number.

121230524013 is a deficient number, since it is larger than the sum of its proper divisors (50792739987).

121230524013 is a wasteful number, since it uses less digits than its factorization.

121230524013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63541.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 121230524013 its reverse (310425032121), we get a palindrome (431655556134).

The spelling of 121230524013 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred twenty-four thousand, thirteen".

Divisors: 1 3 29 37 87 111 599 1073 1797 3219 17371 22163 52113 62873 66489 188619 642727 1823317 1928181 2326301 5469951 6978903 37660927 67462729 112982781 202388187 1092166883 1393454299 3276500649 4180362897 40410174671 121230524013