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2012111113021 = 3786771626723
BaseRepresentation
bin11101010001111011001…
…010110000101100111101
321010100121111001010201121
4131101323022300230331
5230431300421104041
64140203500110541
7265240663160332
oct35217312605475
97110544033647
102012111113021
117063712a42a9
12285b63b35451
13117983730a39
146d55b152989
153751639a7d1
hex1d47b2b0b3d

2012111113021 has 8 divisors (see below), whose sum is σ = 2066519607264. Its totient is φ = 1957704045840.

The previous prime is 2012111112997. The next prime is 2012111113031. The reversal of 2012111113021 is 1203111112102.

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 2012111113021 - 25 = 2012111112989 is a prime.

It is a super-2 number, since 2×20121111130212 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012111112986 and 2012111113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012111113031) 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, 2897166 + ... + 3523888.

It is an arithmetic number, because the mean of its divisors is an integer number (258314950908).

Almost surely, 22012111113021 is an apocalyptic number.

It is an amenable number.

2012111113021 is a deficient number, since it is larger than the sum of its proper divisors (54408494243).

2012111113021 is an equidigital number, since it uses as much as digits as its factorization.

2012111113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713531.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 2012111113021 its reverse (1203111112102), we get a palindrome (3215222225123).

The spelling of 2012111113021 in words is "two trillion, twelve billion, one hundred eleven million, one hundred thirteen thousand, twenty-one".

Divisors: 1 37 86771 626723 3210527 23188751 54381381433 2012111113021