1338044101 has 4 divisors (see below), whose sum is σ = 1338817932. Its totient is φ = 1337270272.

The previous prime is 1338044053. The next prime is 1338044111. The reversal of 1338044101 is 1014408331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1014408331 = 2503 ⋅405277.

It can be written as a sum of positive squares in 2 ways, for example, as 968827876 + 369216225 = 31126^2 + 19215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338044101 - 2⁹ = 1338043589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338044111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384316 + ... + 387781.

It is an arithmetic number, because the mean of its divisors is an integer number (334704483).

Almost surely, 2^1338044101 is an apocalyptic number.

It is an amenable number.

1338044101 is a deficient number, since it is larger than the sum of its proper divisors (773831).

1338044101 is an equidigital number, since it uses as much as digits as its factorization.

1338044101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773830.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1338044101 is about 36579.2851351691. The cubic root of 1338044101 is about 1101.9371104192.

The spelling of 1338044101 in words is "one billion, three hundred thirty-eight million, forty-four thousand, one hundred one".