13015221411 has 4 divisors (see below), whose sum is σ = 17353628552. Its totient is φ = 8676814272.

The previous prime is 13015221391. The next prime is 13015221449. The reversal of 13015221411 is 11412251031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11412251031 = 3 ⋅3804083677.

It is not a de Polignac number, because 13015221411 - 2¹⁸ = 13014959267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13015221911) 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, 2169203566 + ... + 2169203571.

It is an arithmetic number, because the mean of its divisors is an integer number (4338407138).

Almost surely, 2^13015221411 is an apocalyptic number.

13015221411 is a deficient number, since it is larger than the sum of its proper divisors (4338407141).

13015221411 is an equidigital number, since it uses as much as digits as its factorization.

13015221411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338407140.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 13015221411 its reverse (11412251031), we get a palindrome (24427472442).

The spelling of 13015221411 in words is "thirteen billion, fifteen million, two hundred twenty-one thousand, four hundred eleven".