13103031442 has 4 divisors (see below), whose sum is σ = 19654547166. Its totient is φ = 6551515720.

The previous prime is 13103031433. The next prime is 13103031457. The reversal of 13103031442 is 24413030131.

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., 13071120241 + 31911201 = 114329^2 + 5649^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275757859 + ... + 3275757862.

Almost surely, 2^13103031442 is an apocalyptic number.

13103031442 is a deficient number, since it is larger than the sum of its proper divisors (6551515724).

13103031442 is an equidigital number, since it uses as much as digits as its factorization.

13103031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551515723.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13103031442 its reverse (24413030131), we get a palindrome (37516061573).

The spelling of 13103031442 in words is "thirteen billion, one hundred three million, thirty-one thousand, four hundred forty-two".