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11203303021 = 173223290399
BaseRepresentation
bin10100110111100010…
…01101011001101101
31001220202222202112221
422123301031121231
5140421021144041
65051405355341
7544425335011
oct123361153155
931822882487
1011203303021
114829a77419
122207b68b51
13109709a1b1
14783cb2541
1545884c2d1
hex29bc4d66d

11203303021 has 8 divisors (see below), whose sum is σ = 11318630400. Its totient is φ = 11088557232.

The previous prime is 11203303019. The next prime is 11203303039. The reversal of 11203303021 is 12030330211.

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 11203303021 - 21 = 11203303019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203302986 and 11203303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203303061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106621 + ... + 183778.

It is an arithmetic number, because the mean of its divisors is an integer number (1414828800).

Almost surely, 211203303021 is an apocalyptic number.

It is an amenable number.

11203303021 is a deficient number, since it is larger than the sum of its proper divisors (115327379).

11203303021 is a wasteful number, since it uses less digits than its factorization.

11203303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290795.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 11203303021 its reverse (12030330211), we get a palindrome (23233633232).

The spelling of 11203303021 in words is "eleven billion, two hundred three million, three hundred three thousand, twenty-one".

Divisors: 1 173 223 38579 290399 50239027 64758977 11203303021