Search a number
-
+
120321101231 = 518532320427
BaseRepresentation
bin111000000001110110…
…0100100110110101111
3102111120101101020120122
41300003230210312233
53432404200214411
6131135202435155
711456445325412
oct1600354446657
9374511336518
10120321101231
1147034141241
121b39b362abb
13b4668928b6
145b75c4db79
1531e32819db
hex1c03b24daf

120321101231 has 4 divisors (see below), whose sum is σ = 120323473512. Its totient is φ = 120318728952.

The previous prime is 120321101227. The next prime is 120321101233. The reversal of 120321101231 is 132101123021.

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

It is a cyclic number.

It is not a de Polignac number, because 120321101231 - 22 = 120321101227 is a prime.

It is a super-2 number, since 2×1203211012312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321101233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108361 + ... + 1212066.

It is an arithmetic number, because the mean of its divisors is an integer number (30080868378).

Almost surely, 2120321101231 is an apocalyptic number.

120321101231 is a deficient number, since it is larger than the sum of its proper divisors (2372281).

120321101231 is an equidigital number, since it uses as much as digits as its factorization.

120321101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372280.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120321101231 its reverse (132101123021), we get a palindrome (252422224252).

The spelling of 120321101231 in words is "one hundred twenty billion, three hundred twenty-one million, one hundred one thousand, two hundred thirty-one".

Divisors: 1 51853 2320427 120321101231