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120123330023 = 169843707261
BaseRepresentation
bin110111111011111101…
…0001000110111100111
3102111001121020102111002
41233313322020313213
53432003033030043
6131103415503515
711451524313104
oct1576772106747
9374047212432
10120123330023
1146a42540864
121b345087b9b
13b434908c08
145b5788baab
1531d0c17bb8
hex1bf7e88de7

120123330023 has 4 divisors (see below), whose sum is σ = 120124207128. Its totient is φ = 120122452920.

The previous prime is 120123329969. The next prime is 120123330031. The reversal of 120123330023 is 320033321021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 320033321021 = 519496160529.

It is a cyclic number.

It is not a de Polignac number, because 120123330023 - 218 = 120123067879 is a prime.

It is a super-2 number, since 2×1201233300232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120123329977 and 120123330004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123330053) 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, 183788 + ... + 523473.

It is an arithmetic number, because the mean of its divisors is an integer number (30031051782).

Almost surely, 2120123330023 is an apocalyptic number.

120123330023 is a deficient number, since it is larger than the sum of its proper divisors (877105).

120123330023 is an equidigital number, since it uses as much as digits as its factorization.

120123330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877104.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 120123330023 its reverse (320033321021), we get a palindrome (440156651044).

The spelling of 120123330023 in words is "one hundred twenty billion, one hundred twenty-three million, three hundred thirty thousand, twenty-three".

Divisors: 1 169843 707261 120123330023