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2001311321 = 10382323609
BaseRepresentation
bin111011101001001…
…1001011001011001
312011110211011000112
41313102121121121
513044313430241
6530331014105
7100410602612
oct16722313131
95143734015
102001311321
119377628a9
1247a29a335
1325b8161a9
1414db1ac09
15baa711eb
hex77499659

2001311321 has 8 divisors (see below), whose sum is σ = 2023282560. Its totient is φ = 1979389152.

The previous prime is 2001311243. The next prime is 2001311353. The reversal of 2001311321 is 1231131002.

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 2001311321 - 230 = 927569497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001311296 and 2001311305.

It is not an unprimeable number, because it can be changed into a prime (2001317321) 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, 72965 + ... + 96573.

It is an arithmetic number, because the mean of its divisors is an integer number (252910320).

Almost surely, 22001311321 is an apocalyptic number.

It is an amenable number.

2001311321 is a deficient number, since it is larger than the sum of its proper divisors (21971239).

2001311321 is a wasteful number, since it uses less digits than its factorization.

2001311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24535.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2001311321 is about 44736.0181621029. The cubic root of 2001311321 is about 1260.1963498910.

Adding to 2001311321 its reverse (1231131002), we get a palindrome (3232442323).

The spelling of 2001311321 in words is "two billion, one million, three hundred eleven thousand, three hundred twenty-one".

Divisors: 1 103 823 23609 84769 2431727 19430207 2001311321