111434031 has 24 divisors (see below), whose sum is σ = 179403120. Its totient is φ = 66237696.

The previous prime is 111434017. The next prime is 111434051. The reversal of 111434031 is 130434111.

It is not a de Polignac number, because 111434031 - 2⁶ = 111433967 is a prime.

It is a super-2 number, since 2×111434031² = 24835086529817922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111433995 and 111434013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111434051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16260 + ... + 22073.

It is an arithmetic number, because the mean of its divisors is an integer number (7475130).

Almost surely, 2^111434031 is an apocalyptic number.

111434031 is a deficient number, since it is larger than the sum of its proper divisors (67969089).

111434031 is a wasteful number, since it uses less digits than its factorization.

111434031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38375 (or 38372 counting only the distinct ones).

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

The square root of 111434031 is about 10556.2318561123. The cubic root of 111434031 is about 481.2151373857.

Adding to 111434031 its reverse (130434111), we get a palindrome (241868142).

The spelling of 111434031 in words is "one hundred eleven million, four hundred thirty-four thousand, thirty-one".