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311011313011 = 744430187573
BaseRepresentation
bin1001000011010011011…
…10000000010101110011
31002201202220122200111221
410201221232000111303
520043422344004021
6354513203445511
731320102353620
oct4415156002563
91081686580457
10311011313011
1110a998861793
1250339086897
13234361b7639
14110a5719347
158154235241
hex4869b80573

311011313011 has 4 divisors (see below), whose sum is σ = 355441500592. Its totient is φ = 266581125432.

The previous prime is 311011313009. The next prime is 311011313027. The reversal of 311011313011 is 110313110113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311011313011 - 21 = 311011313009 is a prime.

It is a super-2 number, since 2×3110113130112 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311011313071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22215093780 + ... + 22215093793.

It is an arithmetic number, because the mean of its divisors is an integer number (88860375148).

Almost surely, 2311011313011 is an apocalyptic number.

311011313011 is a deficient number, since it is larger than the sum of its proper divisors (44430187581).

311011313011 is an equidigital number, since it uses as much as digits as its factorization.

311011313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44430187580.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 311011313011 its reverse (110313110113), we get a palindrome (421324423124).

The spelling of 311011313011 in words is "three hundred eleven billion, eleven million, three hundred thirteen thousand, eleven".

Divisors: 1 7 44430187573 311011313011