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123012313232 = 2471108285487
BaseRepresentation
bin111001010010000011…
…0101111000010010000
3102202111221100222102012
41302210012233002100
54003412123010412
6132302220442052
711613234260504
oct1624406570220
9382457328365
10123012313232
1148195275696
121ba106a9328
13b7a52c0333
145d4d436304
1532ee67cc22
hex1ca41af090

123012313232 has 20 divisors (see below), whose sum is σ = 241693209216. Its totient is φ = 60639872160.

The previous prime is 123012313201. The next prime is 123012313241. The reversal of 123012313232 is 232313210321.

It is a junction number, because it is equal to n+sod(n) for n = 123012313198 and 123012313207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54141608 + ... + 54143879.

Almost surely, 2123012313232 is an apocalyptic number.

It is an amenable number.

123012313232 is a deficient number, since it is larger than the sum of its proper divisors (118680895984).

123012313232 is a wasteful number, since it uses less digits than its factorization.

123012313232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108285566 (or 108285560 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123012313232 its reverse (232313210321), we get a palindrome (355325523553).

The spelling of 123012313232 in words is "one hundred twenty-three billion, twelve million, three hundred thirteen thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 71 142 284 568 1136 108285487 216570974 433141948 866283896 1732567792 7688269577 15376539154 30753078308 61506156616 123012313232