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23112220001 = 1317104580181
BaseRepresentation
bin10101100001100110…
…000111110101100001
32012122201201102111012
4111201212013311201
5334313212020001
614341223030305
71445512425413
oct254146076541
965581642435
1023112220001
119890277a72
12459029b395
1322443c0b30
1411937809b3
159040ca2bb
hex561987d61

23112220001 has 8 divisors (see below), whose sum is σ = 26354205864. Its totient is φ = 20079394560.

The previous prime is 23112219997. The next prime is 23112220007. The reversal of 23112220001 is 10002221132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45900625 + 23066319376 = 6775^2 + 151876^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23112220001 - 22 = 23112219997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23112220007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52289870 + ... + 52290311.

It is an arithmetic number, because the mean of its divisors is an integer number (3294275733).

Almost surely, 223112220001 is an apocalyptic number.

It is an amenable number.

23112220001 is a deficient number, since it is larger than the sum of its proper divisors (3241985863).

23112220001 is a wasteful number, since it uses less digits than its factorization.

23112220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104580211.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23112220001 its reverse (10002221132), we get a palindrome (33114441133).

The spelling of 23112220001 in words is "twenty-three billion, one hundred twelve million, two hundred twenty thousand, one".

Divisors: 1 13 17 221 104580181 1359542353 1777863077 23112220001