13105120245 has 64 divisors (see below), whose sum is σ = 24382439424. Its totient is φ = 5886996480.

The previous prime is 13105120229. The next prime is 13105120261. The reversal of 13105120245 is 54202150131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13105120229) and next prime (13105120261).

It is not a de Polignac number, because 13105120245 - 2⁴ = 13105120229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1660629 + ... + 1668501.

It is an arithmetic number, because the mean of its divisors is an integer number (380975616).

Almost surely, 2^13105120245 is an apocalyptic number.

13105120245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13105120245 is a deficient number, since it is larger than the sum of its proper divisors (11277319179).

13105120245 is a wasteful number, since it uses less digits than its factorization.

13105120245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8162.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 13105120245 its reverse (54202150131), we get a palindrome (67307270376).

The spelling of 13105120245 in words is "thirteen billion, one hundred five million, one hundred twenty thousand, two hundred forty-five".