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2020121312011 = 111391321204259
BaseRepresentation
bin11101011001011000100…
…111001111101100001011
321011010021201122102000021
4131121120213033230023
5231044202023441021
64144010402321311
7265643326556215
oct35313047175413
97133251572007
102020121312011
117098018a8370
1228761a659237
1311865c10515a
146dabad135b5
153783470cc41
hex1d6589cfb0b

2020121312011 has 8 divisors (see below), whose sum is σ = 2219623156800. Its totient is φ = 1823261876040.

The previous prime is 2020121311973. The next prime is 2020121312047. The reversal of 2020121312011 is 1102131210202.

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

It is not a de Polignac number, because 2020121312011 - 27 = 2020121311883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020121312411) 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, 660600601 + ... + 660603658.

It is an arithmetic number, because the mean of its divisors is an integer number (277452894600).

Almost surely, 22020121312011 is an apocalyptic number.

2020121312011 is a deficient number, since it is larger than the sum of its proper divisors (199501844789).

2020121312011 is a wasteful number, since it uses less digits than its factorization.

2020121312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321204409.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2020121312011 its reverse (1102131210202), we get a palindrome (3122252522213).

The spelling of 2020121312011 in words is "two trillion, twenty billion, one hundred twenty-one million, three hundred twelve thousand, eleven".

Divisors: 1 11 139 1529 1321204259 14533246849 183647392001 2020121312011