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123023303112 = 23342112299907
BaseRepresentation
bin111001010010011000…
…0101010000111001000
3102202112201001022200210
41302210300222013020
54003422431144422
6132303252201120
711613426552123
oct1624460520710
9382481038623
10123023303112
11481a04a1536
121ba143091a0
13b7a766a618
145d50a973ba
1533005ee10c
hex1ca4c2a1c8

123023303112 has 64 divisors (see below), whose sum is σ = 308570788800. Its totient is φ = 40872948480.

The previous prime is 123023303111. The next prime is 123023303171. The reversal of 123023303112 is 211303320321.

It is not an unprimeable number, because it can be changed into a prime (123023303111) 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, 12412863 + ... + 12422769.

It is an arithmetic number, because the mean of its divisors is an integer number (4821418575).

Almost surely, 2123023303112 is an apocalyptic number.

123023303112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123023303112 is an abundant number, since it is smaller than the sum of its proper divisors (185547485688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123023303112 is a wasteful number, since it uses less digits than its factorization.

123023303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11566 (or 11562 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123023303112 its reverse (211303320321), we get a palindrome (334326623433).

The spelling of 123023303112 in words is "one hundred twenty-three billion, twenty-three million, three hundred three thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 421 842 1229 1263 1684 2458 2526 3368 3687 4916 5052 7374 9832 9907 10104 14748 19814 29496 29721 39628 59442 79256 118884 237768 517409 1034818 1552227 2069636 3104454 4139272 4170847 6208908 8341694 12175703 12417816 12512541 16683388 24351406 25025082 33366776 36527109 48702812 50050164 73054218 97405624 100100328 146108436 292216872 5125970963 10251941926 15377912889 20503883852 30755825778 41007767704 61511651556 123023303112