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30012123201331 = 17192322367180617
BaseRepresentation
bin1101101001011101111011…
…11100010011111100110011
310221021010112110122012021211
412310232331330103330303
512413204312014420311
6143455213513300551
76215206251036415
oct664567574237463
9127233473565254
1030012123201331
119621085150707
123448673404757
131399191c7bb6b
1475a8474b89b5
15370a3e283821
hex1b4bbdf13f33

30012123201331 has 32 divisors (see below), whose sum is σ = 34906147983360. Its totient is φ = 25595269641216.

The previous prime is 30012123201329. The next prime is 30012123201343. The reversal of 30012123201331 is 13310232121003.

It is a cyclic number.

It is not a de Polignac number, because 30012123201331 - 21 = 30012123201329 is a prime.

It is a super-2 number, since 2×300121232013312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012123201301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166074135 + ... + 166254751.

It is an arithmetic number, because the mean of its divisors is an integer number (1090817124480).

Almost surely, 230012123201331 is an apocalyptic number.

30012123201331 is a deficient number, since it is larger than the sum of its proper divisors (4894024782029).

30012123201331 is a wasteful number, since it uses less digits than its factorization.

30012123201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203043.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30012123201331 its reverse (13310232121003), we get a palindrome (43322355322334).

The spelling of 30012123201331 in words is "thirty trillion, twelve billion, one hundred twenty-three million, two hundred one thousand, three hundred thirty-one".

Divisors: 1 17 19 23 323 391 437 7429 22367 180617 380239 424973 514441 3070489 3431723 4154191 7224541 8745497 9774379 58339291 70621247 78929629 166164443 1341803693 4039860439 68677627463 76757348341 92916790097 1304874921797 1579585431649 1765419011843 30012123201331