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313121040220211 = 3113674477386523
BaseRepresentation
bin100011100110010000010110…
…0010111111100000000110011
31112001200002010122222101111112
41013030200230113330000303
5312020133342244021321
63025541453044503535
7122645151163241036
oct10714405427740063
91461602118871445
10313121040220211
1190851984179163
122b150b569aabab
13105942589275c2
1457471d3dc101d
15262eee4474a5b
hex11cc82c5fc033

313121040220211 has 8 divisors (see below), whose sum is σ = 323221999064064. Its totient is φ = 303020098884360.

The previous prime is 313121040220207. The next prime is 313121040220223. The reversal of 313121040220211 is 112022040121313.

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 313121040220211 - 22 = 313121040220207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313121040220711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38697596 + ... + 46084118.

It is an arithmetic number, because the mean of its divisors is an integer number (40402749883008).

Almost surely, 2313121040220211 is an apocalyptic number.

313121040220211 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

313121040220211 is a deficient number, since it is larger than the sum of its proper divisors (10100958843853).

313121040220211 is a wasteful number, since it uses less digits than its factorization.

313121040220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754001.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 313121040220211 its reverse (112022040121313), we get a palindrome (425143080341524).

The spelling of 313121040220211 in words is "three hundred thirteen trillion, one hundred twenty-one billion, forty million, two hundred twenty thousand, two hundred eleven".

Divisors: 1 31 1367447 7386523 42390857 228982213 10100678716781 313121040220211