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1230101 = 4328607
BaseRepresentation
bin100101100010100010101
32022111101022
410230110111
5303330401
642210525
713312205
oct4542425
92274338
101230101
11770214
124b3a45
13340b92
14240405
1519471b
hex12c515

1230101 has 4 divisors (see below), whose sum is σ = 1258752. Its totient is φ = 1201452.

The previous prime is 1230071. The next prime is 1230107. The reversal of 1230101 is 1010321.

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 1230101 - 210 = 1229077 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230107) 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, 14261 + ... + 14346.

It is an arithmetic number, because the mean of its divisors is an integer number (314688).

21230101 is an apocalyptic number.

It is an amenable number.

1230101 is a deficient number, since it is larger than the sum of its proper divisors (28651).

1230101 is an equidigital number, since it uses as much as digits as its factorization.

1230101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28650.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1230101 is about 1109.0991840228. The cubic root of 1230101 is about 107.1470595600.

Adding to 1230101 its reverse (1010321), we get a palindrome (2240422).

It can be divided in two parts, 1230 and 101, that added together give a palindrome (1331).

The spelling of 1230101 in words is "one million, two hundred thirty thousand, one hundred one".

Divisors: 1 43 28607 1230101