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121230524012 = 22132331356231
BaseRepresentation
bin111000011100111100…
…1101111111001101100
3102120220202121201002212
41300321321233321230
53441240003232022
6131405330505552
711521130310653
oct1607171577154
9376822551085
10121230524012
114746051a014
121b5b3a352b8
13b5801081a0
145c2094019a
1532480203e2
hex1c39e6fe6c

121230524012 has 12 divisors (see below), whose sum is σ = 228472910736. Its totient is φ = 55952549520.

The previous prime is 121230524011. The next prime is 121230524021. The reversal of 121230524012 is 210425032121.

It is a super-2 number, since 2×1212305240122 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121230524011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165678064 + ... + 1165678167.

It is an arithmetic number, because the mean of its divisors is an integer number (19039409228).

Almost surely, 2121230524012 is an apocalyptic number.

It is an amenable number.

121230524012 is a deficient number, since it is larger than the sum of its proper divisors (107242386724).

121230524012 is a wasteful number, since it uses less digits than its factorization.

121230524012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331356248 (or 2331356246 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 121230524012 its reverse (210425032121), we get a palindrome (331655556133).

The spelling of 121230524012 in words is "one hundred twenty-one billion, two hundred thirty million, five hundred twenty-four thousand, twelve".

Divisors: 1 2 4 13 26 52 2331356231 4662712462 9325424924 30307631003 60615262006 121230524012