13220325401534 has 16 divisors (see below), whose sum is σ = 19918067663520. Its totient is φ = 6580976551680.

The previous prime is 13220325401467. The next prime is 13220325401579. The reversal of 13220325401534 is 43510452302231.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13220325401494 and 13220325401503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2010407 + ... + 5521085.

It is an arithmetic number, because the mean of its divisors is an integer number (1244879228970).

Almost surely, 2^{13220325401534} is an apocalyptic number.

13220325401534 is a deficient number, since it is larger than the sum of its proper divisors (6697742261986).

13220325401534 is a wasteful number, since it uses less digits than its factorization.

13220325401534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518995.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 13220325401534 its reverse (43510452302231), we get a palindrome (56730777703765).

The spelling of 13220325401534 in words is "thirteen trillion, two hundred twenty billion, three hundred twenty-five million, four hundred one thousand, five hundred thirty-four".