13120442758 has 4 divisors (see below), whose sum is σ = 19680664140. Its totient is φ = 6560221378.

The previous prime is 13120442737. The next prime is 13120442773. The reversal of 13120442758 is 85724402131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280110688 + ... + 3280110691.

It is an arithmetic number, because the mean of its divisors is an integer number (4920166035).

Almost surely, 2^13120442758 is an apocalyptic number.

13120442758 is a deficient number, since it is larger than the sum of its proper divisors (6560221382).

13120442758 is an equidigital number, since it uses as much as digits as its factorization.

13120442758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560221381.

The product of its (nonzero) digits is 53760, while the sum is 37.

Adding to 13120442758 its reverse (85724402131), we get a palindrome (98844844889).

The spelling of 13120442758 in words is "thirteen billion, one hundred twenty million, four hundred forty-two thousand, seven hundred fifty-eight".