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212010121313 = 8313731860407
BaseRepresentation
bin1100010101110011001…
…0011011100001100001
3202021020100110001200022
43011130302123201201
511433144042340223
6241221320403225
721213544203644
oct3053462334141
9667210401608
10212010121313
1181a052060a1
1235109916515
1316cb95b8833
14a3931b5a5b
1557aca43ac8
hex315cc9b861

212010121313 has 8 divisors (see below), whose sum is σ = 214720849728. Its totient is φ = 209303116624.

The previous prime is 212010121307. The next prime is 212010121343. The reversal of 212010121313 is 313121010212.

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 212010121313 - 218 = 212009859169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212010121291 and 212010121300.

It is not an unprimeable number, because it can be changed into a prime (212010121343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816245 + ... + 1044162.

It is an arithmetic number, because the mean of its divisors is an integer number (26840106216).

Almost surely, 2212010121313 is an apocalyptic number.

It is an amenable number.

212010121313 is a deficient number, since it is larger than the sum of its proper divisors (2710728415).

212010121313 is a wasteful number, since it uses less digits than its factorization.

212010121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861863.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212010121313 its reverse (313121010212), we get a palindrome (525131131525).

The spelling of 212010121313 in words is "two hundred twelve billion, ten million, one hundred twenty-one thousand, three hundred thirteen".

Divisors: 1 83 1373 113959 1860407 154413781 2554338811 212010121313