13121001213311 has 4 divisors (see below), whose sum is σ = 13892824814112. Its totient is φ = 12349177612512.

The previous prime is 13121001213293. The next prime is 13121001213319. The reversal of 13121001213311 is 11331210012131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13121001213311 - 2³⁴ = 13103821344127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121001213319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385911800375 + ... + 385911800408.

It is an arithmetic number, because the mean of its divisors is an integer number (3473206203528).

Almost surely, 2^{13121001213311} is an apocalyptic number.

13121001213311 is a deficient number, since it is larger than the sum of its proper divisors (771823600801).

13121001213311 is an equidigital number, since it uses as much as digits as its factorization.

13121001213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771823600800.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 13121001213311 its reverse (11331210012131), we get a palindrome (24452211225442).

The spelling of 13121001213311 in words is "thirteen trillion, one hundred twenty-one billion, one million, two hundred thirteen thousand, three hundred eleven".