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123103310212 = 2230775827553
BaseRepresentation
bin111001010100110000…
…1110111000110000100
3102202202021121002210201
41302221201313012010
54004103421411322
6132315231100244
711615420605021
oct1625141670604
9382667532721
10123103310212
1148231678003
121ba37071684
13b7bb100cbc
145d5b562548
153307654d27
hex1ca9877184

123103310212 has 6 divisors (see below), whose sum is σ = 215430792878. Its totient is φ = 61551655104.

The previous prime is 123103310189. The next prime is 123103310243. The reversal of 123103310212 is 212013301321.

It can be written as a sum of positive squares in only one way, i.e., 66551616576 + 56551693636 = 257976^2 + 237806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123103310212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15387913773 + ... + 15387913780.

Almost surely, 2123103310212 is an apocalyptic number.

It is an amenable number.

123103310212 is a deficient number, since it is larger than the sum of its proper divisors (92327482666).

123103310212 is a wasteful number, since it uses less digits than its factorization.

123103310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30775827557 (or 30775827555 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123103310212 its reverse (212013301321), we get a palindrome (335116611533).

The spelling of 123103310212 in words is "one hundred twenty-three billion, one hundred three million, three hundred ten thousand, two hundred twelve".

Divisors: 1 2 4 30775827553 61551655106 123103310212