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123032202212 = 22283108685691
BaseRepresentation
bin111001010010101001…
…0100110101111100100
3102202120022210102222002
41302211102212233210
54003432220432322
6132304211024432
711613565315043
oct1624522465744
9382508712862
10123032202212
11481a551a567
121ba1729b118
13b7a946506a
145d51d3255a
1533012aac92
hex1ca54a6be4

123032202212 has 12 divisors (see below), whose sum is σ = 216067155696. Its totient is φ = 61298729160.

The previous prime is 123032202157. The next prime is 123032202247. The reversal of 123032202212 is 212202230321.

It is a happy number.

It is a super-2 number, since 2×1230322022122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 54341714 + ... + 54343977.

It is an arithmetic number, because the mean of its divisors is an integer number (18005596308).

Almost surely, 2123032202212 is an apocalyptic number.

It is an amenable number.

123032202212 is a deficient number, since it is larger than the sum of its proper divisors (93034953484).

123032202212 is a wasteful number, since it uses less digits than its factorization.

123032202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108685978 (or 108685976 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 123032202212 its reverse (212202230321), we get a palindrome (335234432533).

The spelling of 123032202212 in words is "one hundred twenty-three billion, thirty-two million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 4 283 566 1132 108685691 217371382 434742764 30758050553 61516101106 123032202212