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212012330023 = 13131244151001
BaseRepresentation
bin1100010101110011101…
…0110110110000100111
3202021020111121021110101
43011130322312300213
511433200124030043
6241221440004531
721213602033224
oct3053472666047
9667214537411
10212012330023
1181a0648457a
123510a600747
1316cb9bacc70
14a3935cc94b
1557acd2d24d
hex315ceb6c27

212012330023 has 16 divisors (see below), whose sum is σ = 230162641632. Its totient is φ = 194126400000.

The previous prime is 212012329981. The next prime is 212012330041. The reversal of 212012330023 is 320033210212.

It is not a de Polignac number, because 212012330023 - 237 = 74573376551 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 (212012330083) 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, 4131523 + ... + 4182523.

It is an arithmetic number, because the mean of its divisors is an integer number (14385165102).

Almost surely, 2212012330023 is an apocalyptic number.

212012330023 is a deficient number, since it is larger than the sum of its proper divisors (18150311609).

212012330023 is a wasteful number, since it uses less digits than its factorization.

212012330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53586.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212012330023 its reverse (320033210212), we get a palindrome (532045540235).

The spelling of 212012330023 in words is "two hundred twelve billion, twelve million, three hundred thirty thousand, twenty-three".

Divisors: 1 13 131 1703 2441 31733 51001 319771 663013 4157023 6681131 86854703 124493441 1618414733 16308640771 212012330023