1081003381 has 8 divisors (see below), whose sum is σ = 1130912640. Its totient is φ = 1031336592.

The previous prime is 1081003379. The next prime is 1081003411. The reversal of 1081003381 is 1833001801.

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 1081003381 - 2¹ = 1081003379 is a prime.

It is a super-2 number, since 2×1081003381² = 2337136619466862322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081003481) 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, 51465 + ... + 69358.

It is an arithmetic number, because the mean of its divisors is an integer number (141364080).

Almost surely, 2^1081003381 is an apocalyptic number.

It is an amenable number.

1081003381 is a deficient number, since it is larger than the sum of its proper divisors (49909259).

1081003381 is a wasteful number, since it uses less digits than its factorization.

1081003381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121235.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1081003381 is about 32878.6158619854. The cubic root of 1081003381 is about 1026.3032025068.

The spelling of 1081003381 in words is "one billion, eighty-one million, three thousand, three hundred eighty-one".