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123124031412 = 22310260335951
BaseRepresentation
bin111001010101011000…
…0111001111110110100
3102202210201120211221120
41302222300321332310
54004124223001122
6132321251143540
711616061666464
oct1625260717664
9382721524846
10123124031412
1148242340168
121ba41ba4bb0
13b7c24a7775
145d601d7ba4
15330939975c
hex1caac39fb4

123124031412 has 12 divisors (see below), whose sum is σ = 287289406656. Its totient is φ = 41041343800.

The previous prime is 123124031339. The next prime is 123124031413. The reversal of 123124031412 is 214130421321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1231240314122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123124031413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5130167964 + ... + 5130167987.

It is an arithmetic number, because the mean of its divisors is an integer number (23940783888).

Almost surely, 2123124031412 is an apocalyptic number.

123124031412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123124031412 is an abundant number, since it is smaller than the sum of its proper divisors (164165375244).

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

123124031412 is a wasteful number, since it uses less digits than its factorization.

123124031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10260335958 (or 10260335956 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123124031412 its reverse (214130421321), we get a palindrome (337254452733).

The spelling of 123124031412 in words is "one hundred twenty-three billion, one hundred twenty-four million, thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 10260335951 20520671902 30781007853 41041343804 61562015706 123124031412