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13011103043 = 19684794897
BaseRepresentation
bin11000001111000010…
…11010110101000011
31020120202200111222022
430013201122311003
5203121320244133
65551025032055
7640266360011
oct140741326503
936522614868
1013011103043
115577479324
12263148562b
1312c478b653
148b60198b1
155123e6998
hex30785ad43

13011103043 has 4 divisors (see below), whose sum is σ = 13695897960. Its totient is φ = 12326308128.

The previous prime is 13011103033. The next prime is 13011103087. The reversal of 13011103043 is 34030111031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34030111031 = 74861444433.

It is a cyclic number.

It is not a de Polignac number, because 13011103043 - 210 = 13011102019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011103033) 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, 342397430 + ... + 342397467.

It is an arithmetic number, because the mean of its divisors is an integer number (3423974490).

Almost surely, 213011103043 is an apocalyptic number.

13011103043 is a deficient number, since it is larger than the sum of its proper divisors (684794917).

13011103043 is an equidigital number, since it uses as much as digits as its factorization.

13011103043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684794916.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13011103043 its reverse (34030111031), we get a palindrome (47041214074).

The spelling of 13011103043 in words is "thirteen billion, eleven million, one hundred three thousand, forty-three".

Divisors: 1 19 684794897 13011103043