111401331 has 8 divisors (see below), whose sum is σ = 148601040. Its totient is φ = 74234592.

The previous prime is 111401317. The next prime is 111401341. The reversal of 111401331 is 133104111.

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

It is not a de Polignac number, because 111401331 - 2⁷ = 111401203 is a prime.

It is a super-2 number, since 2×111401331² = 24820513097143122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111401331.

It is not an unprimeable number, because it can be changed into a prime (111401341) 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, 1185 + ... + 14973.

It is an arithmetic number, because the mean of its divisors is an integer number (18575130).

Almost surely, 2^111401331 is an apocalyptic number.

111401331 is a deficient number, since it is larger than the sum of its proper divisors (37199709).

111401331 is a wasteful number, since it uses less digits than its factorization.

111401331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16485.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 111401331 is about 10554.6828943365. The cubic root of 111401331 is about 481.1680623755.

Adding to 111401331 its reverse (133104111), we get a palindrome (244505442).

The spelling of 111401331 in words is "one hundred eleven million, four hundred one thousand, three hundred thirty-one".