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121130303113 = 153777877369
BaseRepresentation
bin111000011001111101…
…1011011111010001001
3102120122210000221212201
41300303323123322021
53441033324144423
6131351350440201
711515502405521
oct1606373337211
9376583027781
10121130303113
1147409997626
121b586363061
13b565417c91
145c114d2681
15323e3252ad
hex1c33edbe89

121130303113 has 4 divisors (see below), whose sum is σ = 121138195860. Its totient is φ = 121122410368.

The previous prime is 121130303089. The next prime is 121130303131. The reversal of 121130303113 is 311303031121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311303031121 = 1916384370059.

It can be written as a sum of positive squares in 2 ways, for example, as 90705175929 + 30425127184 = 301173^2 + 174428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121130303113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121130303153) 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, 3923308 + ... + 3954061.

It is an arithmetic number, because the mean of its divisors is an integer number (30284548965).

Almost surely, 2121130303113 is an apocalyptic number.

It is an amenable number.

121130303113 is a deficient number, since it is larger than the sum of its proper divisors (7892747).

121130303113 is an equidigital number, since it uses as much as digits as its factorization.

121130303113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7892746.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 121130303113 its reverse (311303031121), we get a palindrome (432433334234).

The spelling of 121130303113 in words is "one hundred twenty-one billion, one hundred thirty million, three hundred three thousand, one hundred thirteen".

Divisors: 1 15377 7877369 121130303113