Search a number
-
+
120223321021 = 127946640323
BaseRepresentation
bin110111111110111011…
…1100100101110111101
3102111022120101111100101
41233331313210232331
53432204132233041
6131121351001101
711454150240046
oct1577567445675
9374276344311
10120223321021
1146a93a26551
121b372669191
13b44c54859b
145b66c798cd
1531d98b9b31
hex1bfdde4bbd

120223321021 has 4 divisors (see below), whose sum is σ = 121169961472. Its totient is φ = 119276680572.

The previous prime is 120223320979. The next prime is 120223321067. The reversal of 120223321021 is 120123322021.

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 120223321021 - 211 = 120223318973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120223321021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120223321121) 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, 473320035 + ... + 473320288.

It is an arithmetic number, because the mean of its divisors is an integer number (30292490368).

Almost surely, 2120223321021 is an apocalyptic number.

It is an amenable number.

120223321021 is a deficient number, since it is larger than the sum of its proper divisors (946640451).

120223321021 is an equidigital number, since it uses as much as digits as its factorization.

120223321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946640450.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120223321021 its reverse (120123322021), we get a palindrome (240346643042).

The spelling of 120223321021 in words is "one hundred twenty billion, two hundred twenty-three million, three hundred twenty-one thousand, twenty-one".

Divisors: 1 127 946640323 120223321021