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120230321 = 241498881
BaseRepresentation
bin1110010101010…
…01000110110001
322101020022222212
413022221012301
5221234332241
615532541505
72656640501
oct712510661
9271208885
10120230321
1161959902
1234321895
131bba7a03
1411d79a01
15a84dbeb
hex72a91b1

120230321 has 4 divisors (see below), whose sum is σ = 120729444. Its totient is φ = 119731200.

The previous prime is 120230303. The next prime is 120230351. The reversal of 120230321 is 123032021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89038096 + 31192225 = 9436^2 + 5585^2 .

It is a cyclic number.

It is not a de Polignac number, because 120230321 - 226 = 53121457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120230296 and 120230305.

It is not an unprimeable number, because it can be changed into a prime (120230351) 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 3 ways as a sum of consecutive naturals, for example, 249200 + ... + 249681.

It is an arithmetic number, because the mean of its divisors is an integer number (30182361).

Almost surely, 2120230321 is an apocalyptic number.

It is an amenable number.

120230321 is a deficient number, since it is larger than the sum of its proper divisors (499123).

120230321 is an equidigital number, since it uses as much as digits as its factorization.

120230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499122.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 120230321 is about 10964.9587778523. The cubic root of 120230321 is about 493.5577800937.

Adding to 120230321 its reverse (123032021), we get a palindrome (243262342).

The spelling of 120230321 in words is "one hundred twenty million, two hundred thirty thousand, three hundred twenty-one".

Divisors: 1 241 498881 120230321