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311110003313 = 1921916187627
BaseRepresentation
bin1001000011011111001…
…10011110101001110001
31002202000210100200011022
410201233212132221301
520044123130101223
6354531051025225
731322411252504
oct4415746365161
91082023320138
10311110003313
1110aa3953921a
125036613b215
132345078cc75
14110b488913b
15815cc2bac8
hex486f99ea71

311110003313 has 4 divisors (see below), whose sum is σ = 311126210160. Its totient is φ = 311093796468.

The previous prime is 311110003273. The next prime is 311110003367. The reversal of 311110003313 is 313300011113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313300011113 = 2381131583373.

It is a cyclic number.

It is not a de Polignac number, because 311110003313 - 236 = 242390526577 is a prime.

It is a super-2 number, since 2×3111100033132 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311110003291 and 311110003300.

It is not an unprimeable number, because it can be changed into a prime (311110003213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8074595 + ... + 8113032.

It is an arithmetic number, because the mean of its divisors is an integer number (77781552540).

Almost surely, 2311110003313 is an apocalyptic number.

It is an amenable number.

311110003313 is a deficient number, since it is larger than the sum of its proper divisors (16206847).

311110003313 is a wasteful number, since it uses less digits than its factorization.

311110003313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16206846.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 311110003313 its reverse (313300011113), we get a palindrome (624410014426).

The spelling of 311110003313 in words is "three hundred eleven billion, one hundred ten million, three thousand, three hundred thirteen".

Divisors: 1 19219 16187627 311110003313