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1000323110221 = 12758391348957
BaseRepresentation
bin11101000111001111110…
…01110101010101001101
310112122000020102010101021
432203213321311111031
5112342130204011341
62043313031514141
7132161640100231
oct16434771652515
93478006363337
101000323110221
11356264354436
12141a52228951
137343a1c8616
14365b73145c1
151b049cdc9d1
hexe8e7e7554d

1000323110221 has 8 divisors (see below), whose sum is σ = 1008373084160. Its totient is φ = 992275846128.

The previous prime is 1000323110183. The next prime is 1000323110251. The reversal of 1000323110221 is 1220113230001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1000323110221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000323110195 and 1000323110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000323110251) 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, 67075 + ... + 1416031.

It is an arithmetic number, because the mean of its divisors is an integer number (126046635520).

Almost surely, 21000323110221 is an apocalyptic number.

It is an amenable number.

1000323110221 is a deficient number, since it is larger than the sum of its proper divisors (8049973939).

1000323110221 is a wasteful number, since it uses less digits than its factorization.

1000323110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354923.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1000323110221 its reverse (1220113230001), we get a palindrome (2220436340222).

The spelling of 1000323110221 in words is "one trillion, three hundred twenty-three million, one hundred ten thousand, two hundred twenty-one".

Divisors: 1 127 5839 741553 1348957 171317539 7876559923 1000323110221