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1031141111 = 711131030111
BaseRepresentation
bin111101011101011…
…111011011110111
32122212021101200112
4331131133123313
54102433003421
6250152533235
734360361210
oct7535373367
92585241615
101031141111
1148a063640
122493b121b
13135821690
149ad36407
15607d345b
hex3d75f6f7

1031141111 has 16 divisors (see below), whose sum is σ = 1384470528. Its totient is φ = 741679200.

The previous prime is 1031141107. The next prime is 1031141117. The reversal of 1031141111 is 1111411301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1031141111 - 22 = 1031141107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031141117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514055 + ... + 516056.

It is an arithmetic number, because the mean of its divisors is an integer number (86529408).

Almost surely, 21031141111 is an apocalyptic number.

1031141111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031141111 is a deficient number, since it is larger than the sum of its proper divisors (353329417).

1031141111 is a wasteful number, since it uses less digits than its factorization.

1031141111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030142.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 1031141111 is about 32111.3860024758. The cubic root of 1031141111 is about 1010.2744445839.

Adding to 1031141111 its reverse (1111411301), we get a palindrome (2142552412).

The spelling of 1031141111 in words is "one billion, thirty-one million, one hundred forty-one thousand, one hundred eleven".

Divisors: 1 7 11 13 77 91 143 1001 1030111 7210777 11331221 13391443 79318547 93740101 147305873 1031141111