111431414 has 4 divisors (see below), whose sum is σ = 167147124. Its totient is φ = 55715706.

The previous prime is 111431377. The next prime is 111431417. The reversal of 111431414 is 414134111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414134111 = 293 ⋅1413427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111431417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27857852 + ... + 27857855.

It is an arithmetic number, because the mean of its divisors is an integer number (41786781).

Almost surely, 2^111431414 is an apocalyptic number.

111431414 is a deficient number, since it is larger than the sum of its proper divisors (55715710).

111431414 is an equidigital number, since it uses as much as digits as its factorization.

111431414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55715709.

The product of its digits is 192, while the sum is 20.

The square root of 111431414 is about 10556.1079001685. The cubic root of 111431414 is about 481.2113702844.

Adding to 111431414 its reverse (414134111), we get a palindrome (525565525).

The spelling of 111431414 in words is "one hundred eleven million, four hundred thirty-one thousand, four hundred fourteen".