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12010311011 = 17909177713
BaseRepresentation
bin10110010111101111…
…01100110101100011
31011000000112000101202
423023313230311203
5144044114423021
65303434351415
7603424646666
oct131367546543
934000460352
1012010311011
115103564476
1223b228b56b
131195334b0a
1481d1436dd
154a460aa0b
hex2cbdecd63

12010311011 has 8 divisors (see below), whose sum is σ = 12718362384. Its totient is φ = 11302433280.

The previous prime is 12010311007. The next prime is 12010311023. The reversal of 12010311011 is 11011301021.

It is a happy number.

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 12010311011 - 22 = 12010311007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010310983 and 12010311001.

It is not an unprimeable number, because it can be changed into a prime (12010311041) 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, 115691 + ... + 193403.

It is an arithmetic number, because the mean of its divisors is an integer number (1589795298).

Almost surely, 212010311011 is an apocalyptic number.

12010311011 is a deficient number, since it is larger than the sum of its proper divisors (708051373).

12010311011 is an equidigital number, since it uses as much as digits as its factorization.

12010311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86821.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 12010311011 its reverse (11011301021), we get a palindrome (23021612032).

The spelling of 12010311011 in words is "twelve billion, ten million, three hundred eleven thousand, eleven".

Divisors: 1 17 9091 77713 154547 1321121 706488883 12010311011