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1120230021 = 3616360589
BaseRepresentation
bin100001011000101…
…0101101010000101
32220001220120200210
41002301111222011
54243234330041
6303054230033
736521540511
oct10261255205
92801816623
101120230021
11525382439
122731b5319
1314b114a01
14a8ac7141
1568530016
hex42c55a85

1120230021 has 8 divisors (see below), whose sum is σ = 1493907040. Its totient is φ = 746686512.

The previous prime is 1120229983. The next prime is 1120230031. The reversal of 1120230021 is 1200320211.

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

It is not a de Polignac number, because 1120230021 - 214 = 1120213637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120229979 and 1120230006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120230031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11806 + ... + 48783.

It is an arithmetic number, because the mean of its divisors is an integer number (186738380).

Almost surely, 21120230021 is an apocalyptic number.

It is an amenable number.

1120230021 is a deficient number, since it is larger than the sum of its proper divisors (373677019).

1120230021 is an equidigital number, since it uses as much as digits as its factorization.

1120230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66755.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1120230021 is about 33469.8374809320. The cubic root of 1120230021 is about 1038.5699097113.

Adding to 1120230021 its reverse (1200320211), we get a palindrome (2320550232).

The spelling of 1120230021 in words is "one billion, one hundred twenty million, two hundred thirty thousand, twenty-one".

Divisors: 1 3 6163 18489 60589 181767 373410007 1120230021