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30231101111111 = 257845231391701
BaseRepresentation
bin1101101111110101110100…
…00010101111101101000111
310222001001202102012120211122
412313322322002233231013
512430301243341023421
6144143550502024155
76240060603413435
oct667727202575507
9128031672176748
1030231101111111
1196a5a354aa36a
123482ba671805b
1313b3a1bca2b44
1476729bc23d55
153765a887c2ab
hex1b7eba0afb47

30231101111111 has 8 divisors (see below), whose sum is σ = 30349112720784. Its totient is φ = 30113092454400.

The previous prime is 30231101111059. The next prime is 30231101111161. The reversal of 30231101111111 is 11111110113203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30231101111111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30231101111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231101111161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21026561 + ... + 22418261.

It is an arithmetic number, because the mean of its divisors is an integer number (3793639090098).

Almost surely, 230231101111111 is an apocalyptic number.

30231101111111 is a deficient number, since it is larger than the sum of its proper divisors (118011609673).

30231101111111 is a wasteful number, since it uses less digits than its factorization.

30231101111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476481.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 30231101111111 its reverse (11111110113203), we get a palindrome (41342211224314).

The spelling of 30231101111111 in words is "thirty trillion, two hundred thirty-one billion, one hundred one million, one hundred eleven thousand, one hundred eleven".

Divisors: 1 257 84523 1391701 21722411 357667157 117630743623 30231101111111