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21010130310132 = 22321913055574507
BaseRepresentation
bin1001100011011110011010…
…10110101001001111110100
32202101112211002212000011100
410301233031112221033310
510223212221324411012
6112403530504210100
74265634421004535
oct461571526511764
982345732760140
1021010130310132
116770389910967
122433aa2169930
13b95329263712
14528c77c6868c
152667c5b4a8dc
hex131bcd5a93f4

21010130310132 has 36 divisors (see below), whose sum is σ = 53386997803776. Its totient is φ = 6966709873680.

The previous prime is 21010130310083. The next prime is 21010130310157. The reversal of 21010130310132 is 23101303101012.

21010130310132 is a `hidden beast` number, since 210 + 1 + 0 + 13 + 0 + 310 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1527780378 + ... + 1527794129.

It is an arithmetic number, because the mean of its divisors is an integer number (1482972161216).

Almost surely, 221010130310132 is an apocalyptic number.

It is an amenable number.

21010130310132 is an abundant number, since it is smaller than the sum of its proper divisors (32376867493644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21010130310132 is a wasteful number, since it uses less digits than its factorization.

21010130310132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055574708 (or 3055574703 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21010130310132 its reverse (23101303101012), we get a palindrome (44111433411144).

The spelling of 21010130310132 in words is "twenty-one trillion, ten billion, one hundred thirty million, three hundred ten thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 191 382 573 764 1146 1719 2292 3438 6876 3055574507 6111149014 9166723521 12222298028 18333447042 27500170563 36666894084 55000341126 110000682252 583614730837 1167229461674 1750844192511 2334458923348 3501688385022 5252532577533 7003376770044 10505065155066 21010130310132