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123020222033 = 177399129913
BaseRepresentation
bin111001010010010010…
…0111001111001010001
3102202112111020210020202
41302210210321321101
54003421134101113
6132303102144545
711613361430312
oct1624444717121
9382474223222
10123020222033
1148199787695
121ba13282155
13b7a6b2c0b7
145d504d4609
1533001e1258
hex1ca4939e51

123020222033 has 8 divisors (see below), whose sum is σ = 132041045448. Its totient is φ = 114197658624.

The previous prime is 123020221997. The next prime is 123020222041. The reversal of 123020222033 is 330222020321.

It can be written as a sum of positive squares in 4 ways, for example, as 35423756944 + 87596465089 = 188212^2 + 295967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123020222033 - 230 = 121946480209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123020221996 and 123020222014.

It is not an unprimeable number, because it can be changed into a prime (123020222053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49563716 + ... + 49566197.

It is an arithmetic number, because the mean of its divisors is an integer number (16505130681).

Almost surely, 2123020222033 is an apocalyptic number.

It is an amenable number.

123020222033 is a deficient number, since it is larger than the sum of its proper divisors (9020823415).

123020222033 is an equidigital number, since it uses as much as digits as its factorization.

123020222033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99130003.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 123020222033 its reverse (330222020321), we get a palindrome (453242242354).

The spelling of 123020222033 in words is "one hundred twenty-three billion, twenty million, two hundred twenty-two thousand, thirty-three".

Divisors: 1 17 73 1241 99129913 1685208521 7236483649 123020222033