Search a number
-
+
1121301223 = 7229769737
BaseRepresentation
bin100001011010101…
…1011001011100111
32220010221000002221
41002311123023213
54244023114343
6303133213211
736533621530
oct10265331347
92803830087
101121301223
11525a44229
12273631207
1314b3cb463
14a8cc5687
15686925ed
hex42d5b2e7

1121301223 has 8 divisors (see below), whose sum is σ = 1282063392. Its totient is φ = 960683136.

The previous prime is 1121301197. The next prime is 1121301241. The reversal of 1121301223 is 3221031211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-1121301223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121301197 and 1121301206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121301523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18790 + ... + 50947.

It is an arithmetic number, because the mean of its divisors is an integer number (160257924).

Almost surely, 21121301223 is an apocalyptic number.

1121301223 is a deficient number, since it is larger than the sum of its proper divisors (160762169).

1121301223 is an equidigital number, since it uses as much as digits as its factorization.

1121301223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72041.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1121301223 is about 33485.8361550074. The cubic root of 1121301223 is about 1038.9008428597.

Adding to 1121301223 its reverse (3221031211), we get a palindrome (4342332434).

The spelling of 1121301223 in words is "one billion, one hundred twenty-one million, three hundred one thousand, two hundred twenty-three".

Divisors: 1 7 2297 16079 69737 488159 160185889 1121301223