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121343032025 = 5216013031681
BaseRepresentation
bin111000100000010011…
…0111011101011011001
3102121012121022201002022
41301000212323223121
53442002304011100
6131424430144225
711523664516445
oct1610046735331
9377177281068
10121343032025
1147508a83a46
121b625652075
13b59a50ac87
145c31869825
153252d45e85
hex1c409bbad9

121343032025 has 12 divisors (see below), whose sum is σ = 150559391484. Its totient is φ = 97013760000.

The previous prime is 121343031983. The next prime is 121343032043. The reversal of 121343032025 is 520230343121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 22792242841 + 98550789184 = 150971^2 + 313928^2 .

It is not a de Polignac number, because 121343032025 - 26 = 121343031961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121343031985 and 121343032003.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1475816 + ... + 1555865.

It is an arithmetic number, because the mean of its divisors is an integer number (12546615957).

Almost surely, 2121343032025 is an apocalyptic number.

It is an amenable number.

121343032025 is a deficient number, since it is larger than the sum of its proper divisors (29216359459).

121343032025 is a wasteful number, since it uses less digits than its factorization.

121343032025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033292 (or 3033287 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 121343032025 its reverse (520230343121), we get a palindrome (641573375146).

The spelling of 121343032025 in words is "one hundred twenty-one billion, three hundred forty-three million, thirty-two thousand, twenty-five".

Divisors: 1 5 25 1601 8005 40025 3031681 15158405 75792025 4853721281 24268606405 121343032025