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2012310331111 = 43159729303641
BaseRepresentation
bin11101010010000111000…
…010101101111011100111
321010101010100220110120101
4131102013002231323213
5230432202421043421
64140235334044531
7265245632410153
oct35220702557347
97111110813511
102012310331111
117064637a2853
12285bba7a9747
131179b5aa3172
146d5797b0063
1537528aed191
hex1d4870adee7

2012310331111 has 8 divisors (see below), whose sum is σ = 2060397676304. Its totient is φ = 1964281596480.

The previous prime is 2012310331081. The next prime is 2012310331189. The reversal of 2012310331111 is 1111330132102.

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

It is not a de Polignac number, because 2012310331111 - 227 = 2012176113383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012319331111) 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, 14583150 + ... + 14720491.

It is an arithmetic number, because the mean of its divisors is an integer number (257549709538).

Almost surely, 22012310331111 is an apocalyptic number.

2012310331111 is a deficient number, since it is larger than the sum of its proper divisors (48087345193).

2012310331111 is a wasteful number, since it uses less digits than its factorization.

2012310331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29305281.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2012310331111 its reverse (1111330132102), we get a palindrome (3123640463213).

The spelling of 2012310331111 in words is "two trillion, twelve billion, three hundred ten million, three hundred thirty-one thousand, one hundred eleven".

Divisors: 1 43 1597 68671 29303641 1260056563 46797914677 2012310331111