13430321042 has 4 divisors (see below), whose sum is σ = 20145481566. Its totient is φ = 6715160520.

The previous prime is 13430320997. The next prime is 13430321071. The reversal of 13430321042 is 24012303431.

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

It can be written as a sum of positive squares in only one way, i.e., 13225230001 + 205091041 = 115001^2 + 14321^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13430320999 and 13430321017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3357580259 + ... + 3357580262.

Almost surely, 2^13430321042 is an apocalyptic number.

13430321042 is a deficient number, since it is larger than the sum of its proper divisors (6715160524).

13430321042 is an equidigital number, since it uses as much as digits as its factorization.

13430321042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715160523.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13430321042 its reverse (24012303431), we get a palindrome (37442624473).

The spelling of 13430321042 in words is "thirteen billion, four hundred thirty million, three hundred twenty-one thousand, forty-two".