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2012103011 = 8922607899
BaseRepresentation
bin111011111101110…
…0100000101100011
312012020010102102202
41313323210011203
513110044244021
6531354203415
7100601410352
oct16773440543
95166112382
102012103011
11942863856
12481a2356b
13260b241c9
14151329999
15bb9a3a0b
hex77ee4163

2012103011 has 4 divisors (see below), whose sum is σ = 2034711000. Its totient is φ = 1989495024.

The previous prime is 2012103001. The next prime is 2012103047. The reversal of 2012103011 is 1103012102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1103012102 = 2551506051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012103011 is a prime.

It is a super-2 number, since 2×20121030112 = 8097117053750532242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012102983 and 2012103001.

It is not an unprimeable number, because it can be changed into a prime (2012103001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11303861 + ... + 11304038.

It is an arithmetic number, because the mean of its divisors is an integer number (508677750).

Almost surely, 22012103011 is an apocalyptic number.

2012103011 is a deficient number, since it is larger than the sum of its proper divisors (22607989).

2012103011 is an equidigital number, since it uses as much as digits as its factorization.

2012103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22607988.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2012103011 is about 44856.4712276835. The cubic root of 2012103011 is about 1262.4574135359.

Adding to 2012103011 its reverse (1103012102), we get a palindrome (3115115113).

Subtracting from 2012103011 its reverse (1103012102), we obtain a palindrome (909090909).

The spelling of 2012103011 in words is "two billion, twelve million, one hundred three thousand, eleven".

Divisors: 1 89 22607899 2012103011