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10021320113231 = 723832503240017
BaseRepresentation
bin1001000111010100010100…
…1110011011110001001111
31022111000210000210012222202
42101311011032123301033
52303142130422110411
633151421513032115
72053005440331650
oct221650516336117
938430700705882
1010021320113231
113214021a48709
12115a2479b563b
13579011190c3b
1426906a88d527
15125a26a2383b
hex91d4539bc4f

10021320113231 has 16 divisors (see below), whose sum is σ = 11462368733184. Its totient is φ = 8582632297344.

The previous prime is 10021320113221. The next prime is 10021320113251. The reversal of 10021320113231 is 13231102312001.

It is a happy number.

It is not a de Polignac number, because 10021320113231 - 210 = 10021320112207 is a prime.

It is a super-2 number, since 2×100213201132312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021320113201) 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 15 ways as a sum of consecutive naturals, for example, 41632535 + ... + 41872551.

It is an arithmetic number, because the mean of its divisors is an integer number (716398045824).

Almost surely, 210021320113231 is an apocalyptic number.

10021320113231 is a deficient number, since it is larger than the sum of its proper divisors (1441048619953).

10021320113231 is a wasteful number, since it uses less digits than its factorization.

10021320113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244910.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10021320113231 its reverse (13231102312001), we get a palindrome (23252422425232).

The spelling of 10021320113231 in words is "ten trillion, twenty-one billion, three hundred twenty million, one hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 7 2383 2503 16681 17521 240017 1680119 5964649 41752543 571960511 600762551 4003723577 4205337857 1431617159033 10021320113231