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11020230001 = 112891023329
BaseRepresentation
bin10100100001101101…
…10101110101110001
31001110000111200120201
422100312311311301
5140032134330001
65021305435201
7540043260304
oct122066656561
931400450521
1011020230001
1147456a5a00
12217679bb01
13106818b671
14767858b3b
15447738501
hex290db5d71

11020230001 has 12 divisors (see below), whose sum is σ = 12249260100. Its totient is φ = 9905815040.

The previous prime is 11020229947. The next prime is 11020230029. The reversal of 11020230001 is 10003202011.

It can be written as a sum of positive squares in 2 ways, for example, as 3000848400 + 8019381601 = 54780^2 + 89551^2 .

It is not a de Polignac number, because 11020230001 - 29 = 11020229489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11020230001.

It is not an unprimeable number, because it can be changed into a prime (11020230031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500896 + ... + 522433.

It is an arithmetic number, because the mean of its divisors is an integer number (1020771675).

Almost surely, 211020230001 is an apocalyptic number.

11020230001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11020230001 is a deficient number, since it is larger than the sum of its proper divisors (1229030099).

11020230001 is a wasteful number, since it uses less digits than its factorization.

11020230001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023440 (or 1023429 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 11020230001 its reverse (10003202011), we get a palindrome (21023432012).

The spelling of 11020230001 in words is "eleven billion, twenty million, two hundred thirty thousand, one".

Divisors: 1 11 89 121 979 10769 1023329 11256619 91076281 123822809 1001839091 11020230001