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1111122310111 = 11234391787787
BaseRepresentation
bin10000001010110100000…
…011001111001111011111
310221020000000122122220021
4100022310003033033133
5121201034302410421
62210235331133011
7143163434542432
oct20126403171737
93836000578807
101111122310111
11399251639220
1215b414744167
1380a17158168
143bac86d5819
151dd82150341
hex102b40cf3df

1111122310111 has 8 divisors (see below), whose sum is σ = 1264834882944. Its totient is φ = 966193312920.

The previous prime is 1111122310087. The next prime is 1111122310141. The reversal of 1111122310111 is 1110132211111.

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

It is not a de Polignac number, because 1111122310111 - 217 = 1111122179039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111122310141) 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, 2195893641 + ... + 2195894146.

It is an arithmetic number, because the mean of its divisors is an integer number (158104360368).

Almost surely, 21111122310111 is an apocalyptic number.

1111122310111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1111122310111 is a deficient number, since it is larger than the sum of its proper divisors (153712572833).

1111122310111 is a wasteful number, since it uses less digits than its factorization.

1111122310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391787821.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1111122310111 its reverse (1110132211111), we get a palindrome (2221254521222).

The spelling of 1111122310111 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, three hundred ten thousand, one hundred eleven".

Divisors: 1 11 23 253 4391787787 48309665657 101011119101 1111122310111