111420331 has 8 divisors (see below), whose sum is σ = 121651200. Its totient is φ = 101206440.

The previous prime is 111420307. The next prime is 111420341. The reversal of 111420331 is 133024111.

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 111420331 - 2¹⁹ = 110896043 is a prime.

It is a super-2 number, since 2×111420331² = 24828980320299122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111420341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12310 + ... + 19348.

It is an arithmetic number, because the mean of its divisors is an integer number (15206400).

Almost surely, 2^111420331 is an apocalyptic number.

111420331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111420331 is a deficient number, since it is larger than the sum of its proper divisors (10230869).

111420331 is a wasteful number, since it uses less digits than its factorization.

111420331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 111420331 is about 10555.5829303739. The cubic root of 111420331 is about 481.1954159490.

Adding to 111420331 its reverse (133024111), we get a palindrome (244444442).

The spelling of 111420331 in words is "one hundred eleven million, four hundred twenty thousand, three hundred thirty-one".