111141381 has 8 divisors (see below), whose sum is σ = 159587680. Its totient is φ = 68394672.

The previous prime is 111141379. The next prime is 111141391. The reversal of 111141381 is 183141111.

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

It is not a de Polignac number, because 111141381 - 2¹ = 111141379 is a prime.

It is a super-2 number, since 2×111141381² = 24704813141174322, 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 (111141391) 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, 1424851 + ... + 1424928.

It is an arithmetic number, because the mean of its divisors is an integer number (19948460).

Almost surely, 2^111141381 is an apocalyptic number.

It is an amenable number.

111141381 is a deficient number, since it is larger than the sum of its proper divisors (48446299).

111141381 is a wasteful number, since it uses less digits than its factorization.

111141381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849795.

The product of its digits is 96, while the sum is 21.

The square root of 111141381 is about 10542.3612630188. The cubic root of 111141381 is about 480.7935095395.

Adding to 111141381 its reverse (183141111), we get a palindrome (294282492).

The spelling of 111141381 in words is "one hundred eleven million, one hundred forty-one thousand, three hundred eighty-one".