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120312201133 = 874731375421
BaseRepresentation
bin111000000001100101…
…0100111111110101101
3102111112202122001221101
41300003022213332231
53432344410414013
6131134244003101
711456306556535
oct1600312477655
9374482561841
10120312201133
114702a112493
121b398390491
13b464a97877
145b749b44c5
1531e25c48dd
hex1c032a7fad

120312201133 has 4 divisors (see below), whose sum is σ = 120313664028. Its totient is φ = 120310738240.

The previous prime is 120312201103. The next prime is 120312201137. The reversal of 120312201133 is 331102213021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66598576489 + 53713624644 = 258067^2 + 231762^2 .

It is a cyclic number.

It is not a de Polignac number, because 120312201133 - 221 = 120310103981 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 120312201133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312201137) 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, 600238 + ... + 775183.

It is an arithmetic number, because the mean of its divisors is an integer number (30078416007).

Almost surely, 2120312201133 is an apocalyptic number.

It is an amenable number.

120312201133 is a deficient number, since it is larger than the sum of its proper divisors (1462895).

120312201133 is an equidigital number, since it uses as much as digits as its factorization.

120312201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462894.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120312201133 its reverse (331102213021), we get a palindrome (451414414154).

The spelling of 120312201133 in words is "one hundred twenty billion, three hundred twelve million, two hundred one thousand, one hundred thirty-three".

Divisors: 1 87473 1375421 120312201133