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2012131023 = 3795815763
BaseRepresentation
bin111011111101110…
…1010111011001111
312012020011211212020
41313323222323033
513110101143043
6531354541223
7100601555130
oct16773527317
95166154766
102012131023
11942882901
12481a37813
13260b33b96
14151335c87
15bb9abe83
hex77eeaecf

2012131023 has 8 divisors (see below), whose sum is σ = 3066104448. Its totient is φ = 1149789144.

The previous prime is 2012130973. The next prime is 2012131073. The reversal of 2012131023 is 3201312102.

It is an interprime number because it is at equal distance from previous prime (2012130973) and next prime (2012131073).

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

It is not a de Polignac number, because 2012131023 - 28 = 2012130767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012130993 and 2012131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012131073) 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 7 ways as a sum of consecutive naturals, for example, 47907861 + ... + 47907902.

It is an arithmetic number, because the mean of its divisors is an integer number (383263056).

Almost surely, 22012131023 is an apocalyptic number.

2012131023 is a deficient number, since it is larger than the sum of its proper divisors (1053973425).

2012131023 is an equidigital number, since it uses as much as digits as its factorization.

2012131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95815773.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2012131023 is about 44856.7834669406. The cubic root of 2012131023 is about 1262.4632720486.

Adding to 2012131023 its reverse (3201312102), we get a palindrome (5213443125).

The spelling of 2012131023 in words is "two billion, twelve million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 3 7 21 95815763 287447289 670710341 2012131023