Search a number
-
+
121230212333 = 192251630583
BaseRepresentation
bin111000011100111100…
…0100011110011101101
3102120220202000212120012
41300321320203303231
53441234413243313
6131405320103005
711521124542166
oct1607170436355
9376822025505
10121230212333
114746032692a
121b5b3904a65
13b580029369
145c2089c76d
153247eacda8
hex1c39e23ced

121230212333 has 4 divisors (see below), whose sum is σ = 121231035168. Its totient is φ = 121229389500.

The previous prime is 121230212273. The next prime is 121230212381. The reversal of 121230212333 is 333212032121.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 121230212333 - 218 = 121229950189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121230212299 and 121230212308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230212833) 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, 123041 + ... + 507542.

It is an arithmetic number, because the mean of its divisors is an integer number (30307758792).

Almost surely, 2121230212333 is an apocalyptic number.

It is an amenable number.

121230212333 is a deficient number, since it is larger than the sum of its proper divisors (822835).

121230212333 is an equidigital number, since it uses as much as digits as its factorization.

121230212333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822834.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121230212333 its reverse (333212032121), we get a palindrome (454442244454).

The spelling of 121230212333 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred twelve thousand, three hundred thirty-three".

Divisors: 1 192251 630583 121230212333