1381037381371 has 4 divisors (see below), whose sum is σ = 1393707449200. Its totient is φ = 1368367313544.

The previous prime is 1381037381341. The next prime is 1381037381467. The reversal of 1381037381371 is 1731837301831.

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

It is a cyclic number.

It is not a de Polignac number, because 1381037381371 - 2³⁹ = 831281567483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381037381341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6335033751 + ... + 6335033968.

It is an arithmetic number, because the mean of its divisors is an integer number (348426862300).

Almost surely, 2^{1381037381371} is an apocalyptic number.

1381037381371 is a deficient number, since it is larger than the sum of its proper divisors (12670067829).

1381037381371 is a wasteful number, since it uses less digits than its factorization.

1381037381371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12670067828.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 1381037381371 in words is "one trillion, three hundred eighty-one billion, thirty-seven million, three hundred eighty-one thousand, three hundred seventy-one".