13111120321321 has 4 divisors (see below), whose sum is σ = 14303040350544. Its totient is φ = 11919200292100.

The previous prime is 13111120321303. The next prime is 13111120321357. The reversal of 13111120321321 is 12312302111131.

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.

It is a cyclic number.

It is not a de Polignac number, because 13111120321321 - 2⁷ = 13111120321193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13111120321292 and 13111120321301.

It is not an unprimeable number, because it can be changed into a prime (13111120381321) 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, 595960014595 + ... + 595960014616.

It is an arithmetic number, because the mean of its divisors is an integer number (3575760087636).

Almost surely, 2^{13111120321321} is an apocalyptic number.

13111120321321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13111120321321 is a deficient number, since it is larger than the sum of its proper divisors (1191920029223).

13111120321321 is a wasteful number, since it uses less digits than its factorization.

13111120321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191920029222.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 13111120321321 its reverse (12312302111131), we get a palindrome (25423422432452).

The spelling of 13111120321321 in words is "thirteen trillion, one hundred eleven billion, one hundred twenty million, three hundred twenty-one thousand, three hundred twenty-one".