13311212343439 has 4 divisors (see below), whose sum is σ = 13435616197224. Its totient is φ = 13186808489656.

The previous prime is 13311212343427. The next prime is 13311212343463. The reversal of 13311212343439 is 93434321211331.

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 13311212343439 - 2³³ = 13302622408847 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 (13311212341439) 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, 62201926732 + ... + 62201926945.

It is an arithmetic number, because the mean of its divisors is an integer number (3358904049306).

Almost surely, 2^{13311212343439} is an apocalyptic number.

13311212343439 is a deficient number, since it is larger than the sum of its proper divisors (124403853785).

13311212343439 is a wasteful number, since it uses less digits than its factorization.

13311212343439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124403853784.

The product of its digits is 139968, while the sum is 40.

The spelling of 13311212343439 in words is "thirteen trillion, three hundred eleven billion, two hundred twelve million, three hundred forty-three thousand, four hundred thirty-nine".