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311000200121 = 1345675238251
BaseRepresentation
bin1001000011010010000…
…11100111001110111001
31002201202010202002111102
410201221003213032321
520043412022400441
6354512125341145
731316606040542
oct4415103471671
91081663662442
10311000200121
1110a992561486
12503354077b5
1323433ac6370
14110a40654c9
15815328c69b
hex48690e73b9

311000200121 has 8 divisors (see below), whose sum is σ = 334996691904. Its totient is φ = 287014194000.

The previous prime is 311000200103. The next prime is 311000200183. The reversal of 311000200121 is 121002000113.

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

It is a cyclic number.

It is not a de Polignac number, because 311000200121 - 218 = 310999937977 is a prime.

It is a super-2 number, since 2×3110002001212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311000200421) 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 7 ways as a sum of consecutive naturals, for example, 2559755 + ... + 2678496.

It is an arithmetic number, because the mean of its divisors is an integer number (41874586488).

Almost surely, 2311000200121 is an apocalyptic number.

It is an amenable number.

311000200121 is a deficient number, since it is larger than the sum of its proper divisors (23996491783).

311000200121 is a wasteful number, since it uses less digits than its factorization.

311000200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242831.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 311000200121 its reverse (121002000113), we get a palindrome (432002200234).

The spelling of 311000200121 in words is "three hundred eleven billion, two hundred thousand, one hundred twenty-one".

Divisors: 1 13 4567 59371 5238251 68097263 23923092317 311000200121