13041123221 has 4 divisors (see below), whose sum is σ = 14904140832. Its totient is φ = 11178105612.

The previous prime is 13041123167. The next prime is 13041123259. The reversal of 13041123221 is 12232114031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12232114031 = 5653 ⋅2163827.

It is a cyclic number.

It is not a de Polignac number, because 13041123221 - 2²⁶ = 12974014357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13041123193 and 13041123202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13041129221) 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, 931508795 + ... + 931508808.

It is an arithmetic number, because the mean of its divisors is an integer number (3726035208).

Almost surely, 2^13041123221 is an apocalyptic number.

It is an amenable number.

13041123221 is a deficient number, since it is larger than the sum of its proper divisors (1863017611).

13041123221 is an equidigital number, since it uses as much as digits as its factorization.

13041123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863017610.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13041123221 its reverse (12232114031), we get a palindrome (25273237252).

The spelling of 13041123221 in words is "thirteen billion, forty-one million, one hundred twenty-three thousand, two hundred twenty-one".