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1021010202011 = 17934719018647
BaseRepresentation
bin11101101101110001111…
…00110100110110011011
310121121101221211021101002
432312320330310312123
5113212012102431021
62101013504015215
7133523404344212
oct16667074646633
93547357737332
101021010202011
1136400a706708
12145a6630150b
1375386043137
14375ba974079
151b85b02b50b
hexedb8f34d9b

1021010202011 has 16 divisors (see below), whose sum is σ = 1030333789440. Its totient is φ = 1011730711200.

The previous prime is 1021010201929. The next prime is 1021010202049. The reversal of 1021010202011 is 1102020101201.

It is a cyclic number.

It is not a de Polignac number, because 1021010202011 - 218 = 1021009939867 is a prime.

It is a super-2 number, since 2×10210102020112 (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 = 1021010201983 and 1021010202001.

It is not an unprimeable number, because it can be changed into a prime (1021010202071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118072490 + ... + 118081136.

It is an arithmetic number, because the mean of its divisors is an integer number (64395861840).

Almost surely, 21021010202011 is an apocalyptic number.

1021010202011 is a deficient number, since it is larger than the sum of its proper divisors (9323587429).

1021010202011 is a wasteful number, since it uses less digits than its factorization.

1021010202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11074.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021010202011 its reverse (1102020101201), we get a palindrome (2123030303212).

The spelling of 1021010202011 in words is "one trillion, twenty-one billion, ten million, two hundred two thousand, eleven".

Divisors: 1 179 347 1901 8647 62113 340279 659647 1547813 3000509 16437947 118076813 537091111 2942392513 5703967609 1021010202011