1381105435903 has 8 divisors (see below), whose sum is σ = 1386945116496. Its totient is φ = 1375274846400.

The previous prime is 1381105435901. The next prime is 1381105435909. The reversal of 1381105435903 is 3095345011831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1381105435903 - 2¹ = 1381105435901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1381105435903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381105435901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968208 + ... + 2576053.

It is an arithmetic number, because the mean of its divisors is an integer number (173368139562).

Almost surely, 2^{1381105435903} is an apocalyptic number.

1381105435903 is a deficient number, since it is larger than the sum of its proper divisors (5839680593).

1381105435903 is an equidigital number, since it uses as much as digits as its factorization.

1381105435903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545545.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1381105435903 in words is "one trillion, three hundred eighty-one billion, one hundred five million, four hundred thirty-five thousand, nine hundred three".