13105121303 has 2 divisors, whose sum is σ = 13105121304. Its totient is φ = 13105121302.

The previous prime is 13105121291. The next prime is 13105121311. The reversal of 13105121303 is 30312150131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13105121303 - 2¹⁴ = 13105104919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13105121363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552560651 + 6552560652.

It is an arithmetic number, because the mean of its divisors is an integer number (6552560652).

Almost surely, 2^13105121303 is an apocalyptic number.

13105121303 is a deficient number, since it is larger than the sum of its proper divisors (1).

13105121303 is an equidigital number, since it uses as much as digits as its factorization.

13105121303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 13105121303 its reverse (30312150131), we get a palindrome (43417271434).

The spelling of 13105121303 in words is "thirteen billion, one hundred five million, one hundred twenty-one thousand, three hundred three".