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20323001011 = 61922136131
BaseRepresentation
bin10010111011010110…
…000110001010110011
31221110100022102100011
4102323112012022303
5313110142013021
613200344235351
71316423441545
oct227326061263
957410272304
1020323001011
118689893505
123b3216bb57
131bbb599ab1
14dab165695
157de2bede1
hex4bb5862b3

20323001011 has 8 divisors (see below), whose sum is σ = 20658976848. Its totient is φ = 19987116000.

The previous prime is 20323000993. The next prime is 20323001047. The reversal of 20323001011 is 11010032302.

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 20323001011 - 25 = 20323000979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20323000982 and 20323001000.

It is not an unprimeable number, because it can be changed into a prime (20323001051) 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, 544416 + ... + 580546.

It is an arithmetic number, because the mean of its divisors is an integer number (2582372106).

Almost surely, 220323001011 is an apocalyptic number.

20323001011 is a deficient number, since it is larger than the sum of its proper divisors (335975837).

20323001011 is an equidigital number, since it uses as much as digits as its factorization.

20323001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45413.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20323001011 its reverse (11010032302), we get a palindrome (31333033313).

The spelling of 20323001011 in words is "twenty billion, three hundred twenty-three million, one thousand, eleven".

Divisors: 1 61 9221 36131 562481 2203991 333163951 20323001011