13125442513321 has 16 divisors (see below), whose sum is σ = 14179515064000. Its totient is φ = 12109412141568.

The previous prime is 13125442513319. The next prime is 13125442513349. The reversal of 13125442513321 is 12331524452131.

It is a cyclic number.

It is not a de Polignac number, because 13125442513321 - 2¹ = 13125442513319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13125442513301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23560596 + ... + 24111253.

It is an arithmetic number, because the mean of its divisors is an integer number (886219691500).

Almost surely, 2^{13125442513321} is an apocalyptic number.

It is an amenable number.

13125442513321 is a deficient number, since it is larger than the sum of its proper divisors (1054072550679).

13125442513321 is a wasteful number, since it uses less digits than its factorization.

13125442513321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47672248.

The product of its digits is 86400, while the sum is 37.

Adding to 13125442513321 its reverse (12331524452131), we get a palindrome (25456966965452).

The spelling of 13125442513321 in words is "thirteen trillion, one hundred twenty-five billion, four hundred forty-two million, five hundred thirteen thousand, three hundred twenty-one".