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1011011001011 = 116710143131513
BaseRepresentation
bin11101011011001001111…
…00111001101010110011
310120122121002120020021022
432231210330321222303
5113031022304013021
62052241350250055
7133020536500544
oct16554474715263
93518532506238
101011011001011
1135a849397a30
12143b3565692b
137445157555b
1436d0c97c4cb
151b47327a1ab
hexeb64f39ab3

1011011001011 has 32 divisors (see below), whose sum is σ = 1133124443136. Its totient is φ = 894310560000.

The previous prime is 1011011000983. The next prime is 1011011001047. The reversal of 1011011001011 is 1101001101101.

It is not a de Polignac number, because 1011011001011 - 234 = 993831131827 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 1011011001011.

It is not an unprimeable number, because it can be changed into a prime (1011011001211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32066591 + ... + 32098103.

It is an arithmetic number, because the mean of its divisors is an integer number (35410138848).

Almost surely, 21011011001011 is an apocalyptic number.

1011011001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1011011001011 is a deficient number, since it is larger than the sum of its proper divisors (122113442125).

1011011001011 is a wasteful number, since it uses less digits than its factorization.

1011011001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32123.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1011011001011 its reverse (1101001101101), we get a palindrome (2112012102112).

The spelling of 1011011001011 in words is "one trillion, eleven billion, eleven million, one thousand, eleven".

Divisors: 1 11 67 101 431 737 1111 4741 6767 28877 31513 43531 74437 317647 346643 478841 2111371 2916577 3182813 13582103 23225081 32082347 35010943 149403133 213248471 910000901 1371792403 2345733181 10010009911 15089716433 91910091001 1011011001011