13011123265 has 32 divisors (see below), whose sum is σ = 17973570816. Its totient is φ = 8857201920.

The previous prime is 13011123241. The next prime is 13011123269. The reversal of 13011123265 is 56232111031.

It is a happy number.

It is not a de Polignac number, because 13011123265 - 2⁵ = 13011123233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011123269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5878299 + ... + 5880511.

It is an arithmetic number, because the mean of its divisors is an integer number (561674088).

Almost surely, 2^13011123265 is an apocalyptic number.

It is an amenable number.

13011123265 is a deficient number, since it is larger than the sum of its proper divisors (4962447551).

13011123265 is a wasteful number, since it uses less digits than its factorization.

13011123265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 13011123265 its reverse (56232111031), we get a palindrome (69243234296).

The spelling of 13011123265 in words is "thirteen billion, eleven million, one hundred twenty-three thousand, two hundred sixty-five".