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1200300131221 = 2371735027637
BaseRepresentation
bin10001011101110111011…
…101101000001110010101
311020202011222110100121121
4101131313131220032111
5124131203313144341
62315224341243541
7152501361530122
oct21356735501625
94222158410547
101200300131221
11423054150124
121747621035b1
1389259830449
1442148333749
15213512234d1
hex11777768395

1200300131221 has 8 divisors (see below), whose sum is σ = 1270127758464. Its totient is φ = 1131942559440.

The previous prime is 1200300131183. The next prime is 1200300131227. The reversal of 1200300131221 is 1221310030021.

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 1200300131221 - 233 = 1191710196629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200300131195 and 1200300131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200300131227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367512186 + ... + 367515451.

It is an arithmetic number, because the mean of its divisors is an integer number (158765969808).

Almost surely, 21200300131221 is an apocalyptic number.

It is an amenable number.

1200300131221 is a deficient number, since it is larger than the sum of its proper divisors (69827627243).

1200300131221 is an equidigital number, since it uses as much as digits as its factorization.

1200300131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735027731.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1200300131221 its reverse (1221310030021), we get a palindrome (2421610161242).

The spelling of 1200300131221 in words is "one trillion, two hundred billion, three hundred million, one hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 23 71 1633 735027637 16905635651 52186962227 1200300131221