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13030331311 = 110311813537
BaseRepresentation
bin11000010001010101…
…10001001110101111
31020122002212102012101
430020222301032233
5203141231100221
65552553115531
7640621663054
oct141052611657
936562772171
1013030331311
115587311858
1226379b8ba7
1312c876171a
148b87c302b
15513e43d91
hex308ab13af

13030331311 has 4 divisors (see below), whose sum is σ = 13042145952. Its totient is φ = 13018516672.

The previous prime is 13030331299. The next prime is 13030331341. The reversal of 13030331311 is 11313303031.

It is a happy number.

13030331311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11313303031 = 19956850769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13030331311 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 (13030331341) 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, 5905666 + ... + 5907871.

It is an arithmetic number, because the mean of its divisors is an integer number (3260536488).

Almost surely, 213030331311 is an apocalyptic number.

13030331311 is a deficient number, since it is larger than the sum of its proper divisors (11814641).

13030331311 is a wasteful number, since it uses less digits than its factorization.

13030331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814640.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 13030331311 its reverse (11313303031), we get a palindrome (24343634342).

The spelling of 13030331311 in words is "thirteen billion, thirty million, three hundred thirty-one thousand, three hundred eleven".

Divisors: 1 1103 11813537 13030331311