111430143 has 12 divisors (see below), whose sum is σ = 175587048. Its totient is φ = 67533360.

The previous prime is 111430141. The next prime is 111430171. The reversal of 111430143 is 341034111.

It is not a de Polignac number, because 111430143 - 2¹ = 111430141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111430141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562680 + ... + 562877.

It is an arithmetic number, because the mean of its divisors is an integer number (14632254).

Almost surely, 2^111430143 is an apocalyptic number.

111430143 is a deficient number, since it is larger than the sum of its proper divisors (64156905).

111430143 is a wasteful number, since it uses less digits than its factorization.

111430143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125574 (or 1125571 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 111430143 is about 10556.0476978839. The cubic root of 111430143 is about 481.2095406926.

Adding to 111430143 its reverse (341034111), we get a palindrome (452464254).

The spelling of 111430143 in words is "one hundred eleven million, four hundred thirty thousand, one hundred forty-three".