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311300213101 = 378413519273
BaseRepresentation
bin1001000011110101111…
…00000100100101101101
31002202112001021022221021
410201322330010211231
520100020323304401
6355002003534141
731330211103133
oct4417274044555
91082461238837
10311300213101
11110026944699
12503b998a351
1323480cca037
14110d1c3d753
15816e7a02a1
hex487af0496d

311300213101 has 4 divisors (see below), whose sum is σ = 319713732412. Its totient is φ = 302886693792.

The previous prime is 311300213069. The next prime is 311300213137. The reversal of 311300213101 is 101312003113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101312003113 = 290334899071.

It can be written as a sum of positive squares in 2 ways, for example, as 236497416100 + 74802797001 = 486310^2 + 273501^2 .

It is a cyclic number.

It is not a de Polignac number, because 311300213101 - 25 = 311300213069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311300253101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4206759600 + ... + 4206759673.

It is an arithmetic number, because the mean of its divisors is an integer number (79928433103).

Almost surely, 2311300213101 is an apocalyptic number.

It is an amenable number.

311300213101 is a deficient number, since it is larger than the sum of its proper divisors (8413519311).

311300213101 is an equidigital number, since it uses as much as digits as its factorization.

311300213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8413519310.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 311300213101 its reverse (101312003113), we get a palindrome (412612216214).

The spelling of 311300213101 in words is "three hundred eleven billion, three hundred million, two hundred thirteen thousand, one hundred one".

Divisors: 1 37 8413519273 311300213101