13111321021522 has 8 divisors (see below), whose sum is σ = 19739553420672. Its totient is φ = 6531469881300.

The previous prime is 13111321021517. The next prime is 13111321021543. The reversal of 13111321021522 is 22512012311131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12095314054 + ... + 12095315137.

It is an arithmetic number, because the mean of its divisors is an integer number (2467444177584).

Almost surely, 2^{13111321021522} is an apocalyptic number.

13111321021522 is a deficient number, since it is larger than the sum of its proper divisors (6628232399150).

13111321021522 is a wasteful number, since it uses less digits than its factorization.

13111321021522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24190629464.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 13111321021522 its reverse (22512012311131), we get a palindrome (35623333332653).

The spelling of 13111321021522 in words is "thirteen trillion, one hundred eleven billion, three hundred twenty-one million, twenty-one thousand, five hundred twenty-two".