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3121130211366 = 23520188368561
BaseRepresentation
bin101101011010110001110…
…110111000100000100110
3102001101011221010120110210
4231122301312320200212
5402114033313230431
610345454420200250
7441331342031256
oct55326166704046
912041157116423
103121130211366
11aa3733700382
12424a90239086
13198423c1519b
14ab0c63a3966
15562c3a4bd46
hex2d6b1db8826

3121130211366 has 8 divisors (see below), whose sum is σ = 6242260422744. Its totient is φ = 1040376737120.

The previous prime is 3121130211313. The next prime is 3121130211377. The reversal of 3121130211366 is 6631120311213.

3121130211366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

3121130211366 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260094184275 + ... + 260094184286.

It is an arithmetic number, because the mean of its divisors is an integer number (780282552843).

Almost surely, 23121130211366 is an apocalyptic number.

3121130211366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121130211366 is a wasteful number, since it uses less digits than its factorization.

3121130211366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520188368566.

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 3121130211366 its reverse (6631120311213), we get a palindrome (9752250522579).

The spelling of 3121130211366 in words is "three trillion, one hundred twenty-one billion, one hundred thirty million, two hundred eleven thousand, three hundred sixty-six".

Divisors: 1 2 3 6 520188368561 1040376737122 1560565105683 3121130211366