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131102011 = 1729431617
BaseRepresentation
bin1111101000001…
…11010100111011
3100010200200011001
413310013110323
5232030231021
621001545431
73151230415
oct764072473
9303620131
10131102011
1168004977
1237aa5277
1321213271
14135a99b5
15b79a091
hex7d0753b

131102011 has 16 divisors (see below), whose sum is σ = 144167040. Its totient is φ = 118666240.

The previous prime is 131102003. The next prime is 131102017. The reversal of 131102011 is 110201131.

It is a cyclic number.

It is not a de Polignac number, because 131102011 - 23 = 131102003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131102017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212175 + ... + 212791.

It is an arithmetic number, because the mean of its divisors is an integer number (9010440).

Almost surely, 2131102011 is an apocalyptic number.

131102011 is a deficient number, since it is larger than the sum of its proper divisors (13065029).

131102011 is a wasteful number, since it uses less digits than its factorization.

131102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 131102011 is about 11449.9786462683. The cubic root of 131102011 is about 508.0071027899.

Adding to 131102011 its reverse (110201131), we get a palindrome (241303142).

The spelling of 131102011 in words is "one hundred thirty-one million, one hundred two thousand, eleven".

Divisors: 1 17 29 431 493 617 7327 10489 12499 17893 212483 265927 304181 4520759 7711883 131102011