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212010023311 = 297310690459
BaseRepresentation
bin1100010101110011001…
…0000011100110001111
3202021020100021002020121
43011130302003212033
511433144031221221
6241221314325411
721213543315142
oct3053462034617
9667210232217
10212010023311
1181a051494a9
1235109889867
1316cb9583048
14a39318c059
1557aca24a41
hex315cc8398f

212010023311 has 4 divisors (see below), whose sum is σ = 219320713800. Its totient is φ = 204699332824.

The previous prime is 212010023287. The next prime is 212010023371. The reversal of 212010023311 is 113320010212.

212010023311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212010023311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010023371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655345201 + ... + 3655345258.

It is an arithmetic number, because the mean of its divisors is an integer number (54830178450).

Almost surely, 2212010023311 is an apocalyptic number.

212010023311 is a deficient number, since it is larger than the sum of its proper divisors (7310690489).

212010023311 is an equidigital number, since it uses as much as digits as its factorization.

212010023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310690488.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212010023311 its reverse (113320010212), we get a palindrome (325330033523).

The spelling of 212010023311 in words is "two hundred twelve billion, ten million, twenty-three thousand, three hundred eleven".

Divisors: 1 29 7310690459 212010023311