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120123301231 = 173167250777
BaseRepresentation
bin110111111011111101…
…0000001110101101111
3102111001121011221222201
41233313322001311233
53432003031114411
6131103415122331
711451524133133
oct1576772016557
9374047157881
10120123301231
1146a4252116a
121b3450733a7
13b4348c8a8b
145b578813c3
1531d0c0e3c1
hex1bf7e81d6f

120123301231 has 24 divisors (see below), whose sum is σ = 133283719296. Its totient is φ = 107775106560.

The previous prime is 120123301223. The next prime is 120123301237. The reversal of 120123301231 is 132103321021.

It is not a de Polignac number, because 120123301231 - 23 = 120123301223 is a prime.

It is a super-2 number, since 2×1201233012312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120123301199 and 120123301208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123301237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2340315 + ... + 2391091.

It is an arithmetic number, because the mean of its divisors is an integer number (5553488304).

Almost surely, 2120123301231 is an apocalyptic number.

120123301231 is a deficient number, since it is larger than the sum of its proper divisors (13160418065).

120123301231 is an equidigital number, since it uses as much as digits as its factorization.

120123301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50959 (or 50892 counting only the distinct ones).

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

Adding to 120123301231 its reverse (132103321021), we get a palindrome (252226622252).

The spelling of 120123301231 in words is "one hundred twenty billion, one hundred twenty-three million, three hundred one thousand, two hundred thirty-one".

Divisors: 1 17 31 67 527 1139 2077 4489 35309 50777 76313 139159 863209 1574087 2365703 3402059 26759479 57835003 105463829 227937953 1792885093 3874945201 7066076543 120123301231