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23320203121001 = 181128840901221
BaseRepresentation
bin1010100110101101010000…
…11011000101000101101001
310001120101112001101200201202
411103112220123011011221
511024034233444333001
6121333053045453545
74624554241631633
oct523265033050551
9101511461350652
1023320203121001
117481051783926
122747740a112b5
131002116427bb7
145a89bd533a53
152a692a77896b
hex1535a86c5169

23320203121001 has 4 divisors (see below), whose sum is σ = 23449044022404. Its totient is φ = 23191362219600.

The previous prime is 23320203120967. The next prime is 23320203121051. The reversal of 23320203121001 is 10012130202332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6134037936601 + 17186165184400 = 2476699^2 + 4145620^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320203121001 - 218 = 23320202858857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320203121051) 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, 64420450430 + ... + 64420450791.

It is an arithmetic number, because the mean of its divisors is an integer number (5862261005601).

Almost surely, 223320203121001 is an apocalyptic number.

It is an amenable number.

23320203121001 is a deficient number, since it is larger than the sum of its proper divisors (128840901403).

23320203121001 is a wasteful number, since it uses less digits than its factorization.

23320203121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128840901402.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23320203121001 its reverse (10012130202332), we get a palindrome (33332333323333).

The spelling of 23320203121001 in words is "twenty-three trillion, three hundred twenty billion, two hundred three million, one hundred twenty-one thousand, one".

Divisors: 1 181 128840901221 23320203121001