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20003023231001 = 173917300395309
BaseRepresentation
bin1001000110001010100010…
…00110000001100000011001
32121211021022002012112221022
410203011101012001200121
510110212142421343001
6110313132332252225
74133112364041266
oct443052106014031
977737262175838
1020003023231001
116412264155258
1222b0878011075
13b2137a740215
144d221999026d
1524a4d04b811b
hex123151181819

20003023231001 has 8 divisors (see below), whose sum is σ = 21185078842440. Its totient is φ = 18821568418048.

The previous prime is 20003023230937. The next prime is 20003023231007. The reversal of 20003023231001 is 10013232030002.

It can be written as a sum of positive squares in 4 ways, for example, as 13762764432400 + 6240258798601 = 3709820^2 + 2498051^2 .

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 20003023231001 - 26 = 20003023230937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003023231007) 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, 150131066 + ... + 150264243.

It is an arithmetic number, because the mean of its divisors is an integer number (2648134855305).

Almost surely, 220003023231001 is an apocalyptic number.

It is an amenable number.

20003023231001 is a deficient number, since it is larger than the sum of its proper divisors (1182055611439).

20003023231001 is a wasteful number, since it uses less digits than its factorization.

20003023231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300399243.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20003023231001 its reverse (10013232030002), we get a palindrome (30016255261003).

The spelling of 20003023231001 in words is "twenty trillion, three billion, twenty-three million, two hundred thirty-one thousand, one".

Divisors: 1 17 3917 66589 300395309 5106720253 1176648425353 20003023231001