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30231122221023 = 31710912742820711
BaseRepresentation
bin1101101111110101110110…
…10011010001011111011111
310222001001210212221002012020
412313322323103101133133
512430301314242033043
6144143552534311223
76240061251014403
oct667727323213737
9128031725832166
1030231122221023
1196a5a46408579
123482bb17b8513
1313b3a23484509
147672a095b103
153765aa64be83
hex1b7ebb4d17df

30231122221023 has 32 divisors (see below), whose sum is σ = 43409924997120. Its totient is φ = 18646535093760.

The previous prime is 30231122221021. The next prime is 30231122221051. The reversal of 30231122221023 is 32012222113203.

It is not a de Polignac number, because 30231122221023 - 21 = 30231122221021 is a prime.

It is a super-3 number, since 3×302311222210233 (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30231122220984 and 30231122221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231122221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20704363 + ... + 22116348.

It is an arithmetic number, because the mean of its divisors is an integer number (1356560156160).

Almost surely, 230231122221023 is an apocalyptic number.

30231122221023 is a deficient number, since it is larger than the sum of its proper divisors (13178802776097).

30231122221023 is a wasteful number, since it uses less digits than its factorization.

30231122221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42820967.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30231122221023 its reverse (32012222113203), we get a palindrome (62243344334226).

The spelling of 30231122221023 in words is "thirty trillion, two hundred thirty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty-three".

Divisors: 1 3 17 51 109 127 327 381 1853 2159 5559 6477 13843 41529 235331 705993 42820711 128462133 727952087 2183856261 4667457499 5438230297 14002372497 16314690891 79346777483 92449915049 238040332449 277349745147 592767102373 1778301307119 10077040740341 30231122221023