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131011001011 = 1125394690859
BaseRepresentation
bin111101000000011011…
…1010011101010110011
3110112011101022102021201
41322000313103222303
54121302304013021
6140104032232031
712315401064112
oct1720067235263
9415141272251
10131011001011
115061a327160
122148339b617
13c47b494097
1464ab87bc79
15361b9b9591
hex1e80dd3ab3

131011001011 has 8 divisors (see below), whose sum is σ = 142977412800. Its totient is φ = 119053976040.

The previous prime is 131011000969. The next prime is 131011001021. The reversal of 131011001011 is 110100110131.

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

It is a cyclic number.

It is not a de Polignac number, because 131011001011 - 233 = 122421066419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011001021) 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, 2317501 + ... + 2373358.

It is an arithmetic number, because the mean of its divisors is an integer number (17872176600).

Almost surely, 2131011001011 is an apocalyptic number.

131011001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131011001011 is a deficient number, since it is larger than the sum of its proper divisors (11966411789).

131011001011 is a wasteful number, since it uses less digits than its factorization.

131011001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693409.

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 131011001011 its reverse (110100110131), we get a palindrome (241111111142).

The spelling of 131011001011 in words is "one hundred thirty-one billion, eleven million, one thousand, eleven".

Divisors: 1 11 2539 27929 4690859 51599449 11910091001 131011001011