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231311213002313 = 4613935831274851
BaseRepresentation
bin110100100110000001010110…
…101011101111111001001001
31010100000010200010220210202122
4310212001112223233321021
5220304300331012033223
62135542523153541025
766502453330441313
oct6446012653577111
91110003603823678
10231311213002313
1167780597518154
1221b397b5274775
139c0b7278aa472
1441197458347b3
151bb1e073a45c8
hexd26056aefe49

231311213002313 has 8 divisors (see below), whose sum is σ = 231813743500416. Its totient is φ = 230808685842000.

The previous prime is 231311213002273. The next prime is 231311213002343. The reversal of 231311213002313 is 313200312113132.

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 231311213002313 - 228 = 231310944566857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231311213002343) 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, 180804338 + ... + 182079188.

It is an arithmetic number, because the mean of its divisors is an integer number (28976717937552).

Almost surely, 2231311213002313 is an apocalyptic number.

It is an amenable number.

231311213002313 is a deficient number, since it is larger than the sum of its proper divisors (502530498103).

231311213002313 is a wasteful number, since it uses less digits than its factorization.

231311213002313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668895.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 231311213002313 its reverse (313200312113132), we get a palindrome (544511525115445).

The spelling of 231311213002313 in words is "two hundred thirty-one trillion, three hundred eleven billion, two hundred thirteen million, two thousand, three hundred thirteen".

Divisors: 1 461 393583 1274851 181441763 587706311 501759681133 231311213002313