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3000312121 is a prime number
BaseRepresentation
bin1011001011010101…
…0010000100111001
321202002121122111011
42302311102010321
522121034441441
61213415033521
7134231142442
oct26265220471
97662548434
103000312121
1112aa6639a4
126b896b8a1
1338a793621
142066882c9
15128606581
hexb2d52139

3000312121 has 2 divisors, whose sum is σ = 3000312122. Its totient is φ = 3000312120.

The previous prime is 3000312113. The next prime is 3000312157. The reversal of 3000312121 is 1212130003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2262429225 + 737882896 = 47565^2 + 27164^2 .

It is a cyclic number.

It is not a de Polignac number, because 3000312121 - 23 = 3000312113 is a prime.

It is a super-3 number, since 3×30003121213 (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3000312101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500156060 + 1500156061.

It is an arithmetic number, because the mean of its divisors is an integer number (1500156061).

Almost surely, 23000312121 is an apocalyptic number.

It is an amenable number.

3000312121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3000312121 is an equidigital number, since it uses as much as digits as its factorization.

3000312121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3000312121 is about 54775.1049382838. The cubic root of 3000312121 is about 1442.2995859482.

Adding to 3000312121 its reverse (1212130003), we get a palindrome (4212442124).

It can be divided in two parts, 30003 and 12121, that multiplied together give a palindrome (363666363).

The spelling of 3000312121 in words is "three billion, three hundred twelve thousand, one hundred twenty-one".