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10201313221 = 11927392111
BaseRepresentation
bin10011000000000101…
…11010111111000101
3222022221120101221121
421200002322333011
5131343014010341
64404133313541
7510540505651
oct114002727705
928287511847
1010201313221
114365414680
121b884958b1
13c67614418
146caba7a61
153ea8c64d1
hex2600bafc5

10201313221 has 4 divisors (see below), whose sum is σ = 11128705344. Its totient is φ = 9273921100.

The previous prime is 10201313219. The next prime is 10201313321. The reversal of 10201313221 is 12231310201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10201313221 - 21 = 10201313219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201313195 and 10201313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201313021) 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, 463696045 + ... + 463696066.

It is an arithmetic number, because the mean of its divisors is an integer number (2782176336).

Almost surely, 210201313221 is an apocalyptic number.

10201313221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10201313221 is a deficient number, since it is larger than the sum of its proper divisors (927392123).

10201313221 is an equidigital number, since it uses as much as digits as its factorization.

10201313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927392122.

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

Adding to 10201313221 its reverse (12231310201), we get a palindrome (22432623422).

The spelling of 10201313221 in words is "ten billion, two hundred one million, three hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 11 927392111 10201313221