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122130123312 = 2437932207311
BaseRepresentation
bin111000110111110000…
…1011100101000110000
3102200020110101002100110
41301233201130220300
54000110302421222
6132034504221320
711552332630311
oct1615741345060
9380213332313
10122130123312
11478822a830a
121b80516a840
13b6945c1372
145ca81d4608
15329bebd30c
hex1c6f85ca30

122130123312 has 40 divisors (see below), whose sum is σ = 319496535040. Its totient is φ = 40194722880.

The previous prime is 122130123281. The next prime is 122130123337. The reversal of 122130123312 is 213321031221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16099864 + ... + 16107447.

It is an arithmetic number, because the mean of its divisors is an integer number (7987413376).

Almost surely, 2122130123312 is an apocalyptic number.

122130123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122130123312 is an abundant number, since it is smaller than the sum of its proper divisors (197366411728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122130123312 is a wasteful number, since it uses less digits than its factorization.

122130123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32207401 (or 32207395 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 122130123312 its reverse (213321031221), we get a palindrome (335451154533).

The spelling of 122130123312 in words is "one hundred twenty-two billion, one hundred thirty million, one hundred twenty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 79 158 237 316 474 632 948 1264 1896 3792 32207311 64414622 96621933 128829244 193243866 257658488 386487732 515316976 772975464 1545950928 2544377569 5088755138 7633132707 10177510276 15266265414 20355020552 30532530828 40710041104 61065061656 122130123312