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103031110313 = 896531149221
BaseRepresentation
bin101111111110100100…
…0011111101010101001
3100211221102012200220122
41133331020133222221
53142001431012223
6115155402133025
710305130662545
oct1377510375251
9324842180818
10103031110313
113a77141514a
1217b74ab1175
13993c797441
144db5844a25
152a303c65c8
hex17fd21faa9

103031110313 has 4 divisors (see below), whose sum is σ = 103032349188. Its totient is φ = 103029871440.

The previous prime is 103031110307. The next prime is 103031110331. The reversal of 103031110313 is 313011130301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85552155049 + 17478955264 = 292493^2 + 132208^2 .

It is a cyclic number.

It is not a de Polignac number, because 103031110313 - 218 = 103030848169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103031110291 and 103031110300.

It is not an unprimeable number, because it can be changed into a prime (103031110363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484958 + ... + 664263.

It is an arithmetic number, because the mean of its divisors is an integer number (25758087297).

Almost surely, 2103031110313 is an apocalyptic number.

It is an amenable number.

103031110313 is a deficient number, since it is larger than the sum of its proper divisors (1238875).

103031110313 is an equidigital number, since it uses as much as digits as its factorization.

103031110313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238874.

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

Adding to 103031110313 its reverse (313011130301), we get a palindrome (416042240614).

The spelling of 103031110313 in words is "one hundred three billion, thirty-one million, one hundred ten thousand, three hundred thirteen".

Divisors: 1 89653 1149221 103031110313