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121232003223 = 31631094922643
BaseRepresentation
bin111000011100111111…
…1011001000010010111
3102120220212101212012110
41300321333121002113
53441240343100343
6131405422322103
711521146011352
oct1607177310227
9376825355173
10121232003223
114746133a401
121b5b4429333
13b580505566
145c20c07299
153248213833
hex1c39fd9097

121232003223 has 16 divisors (see below), whose sum is σ = 162656380800. Its totient is φ = 80314615584.

The previous prime is 121232003177. The next prime is 121232003251. The reversal of 121232003223 is 322300232121.

It is a happy number.

It is not a de Polignac number, because 121232003223 - 26 = 121232003159 is a prime.

It is a super-2 number, since 2×1212320032232 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121232003223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232003023) 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, 5342740 + ... + 5365382.

It is an arithmetic number, because the mean of its divisors is an integer number (10166023800).

Almost surely, 2121232003223 is an apocalyptic number.

121232003223 is a deficient number, since it is larger than the sum of its proper divisors (41424377577).

121232003223 is a wasteful number, since it uses less digits than its factorization.

121232003223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33758.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 121232003223 its reverse (322300232121), we get a palindrome (443532235344).

The spelling of 121232003223 in words is "one hundred twenty-one billion, two hundred thirty-two million, three thousand, two hundred twenty-three".

Divisors: 1 3 163 489 10949 22643 32847 67929 1784687 3690809 5354061 11072427 247918207 743754621 40410667741 121232003223