381101013 has 12 divisors (see below), whose sum is σ = 550875520. Its totient is φ = 253884456.

The previous prime is 381100997. The next prime is 381101047. The reversal of 381101013 is 310101183.

It is a happy number.

It is not a de Polignac number, because 381101013 - 2⁴ = 381100997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381101713) 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 11 ways as a sum of consecutive naturals, for example, 1381 + ... + 27642.

Almost surely, 2^381101013 is an apocalyptic number.

It is an amenable number.

381101013 is a deficient number, since it is larger than the sum of its proper divisors (169774507).

381101013 is a wasteful number, since it uses less digits than its factorization.

381101013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30488 (or 30485 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 381101013 is about 19521.8086508397. The cubic root of 381101013 is about 725.0145144934.

Adding to 381101013 its reverse (310101183), we get a palindrome (691202196).

The spelling of 381101013 in words is "three hundred eighty-one million, one hundred one thousand, thirteen".