111343431 has 8 divisors (see below), whose sum is σ = 148744944. Its totient is φ = 74085440.

The previous prime is 111343429. The next prime is 111343447. The reversal of 111343431 is 134343111.

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 111343431 - 2¹ = 111343429 is a prime.

It is a super-2 number, since 2×111343431² = 24794719253703522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111343398 and 111343407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111341431) 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, 34056 + ... + 37181.

It is an arithmetic number, because the mean of its divisors is an integer number (18593118).

Almost surely, 2^111343431 is an apocalyptic number.

111343431 is a deficient number, since it is larger than the sum of its proper divisors (37401513).

111343431 is an equidigital number, since it uses as much as digits as its factorization.

111343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71761.

The product of its digits is 432, while the sum is 21.

The square root of 111343431 is about 10551.9396795092. The cubic root of 111343431 is about 481.0846867744.

Adding to 111343431 its reverse (134343111), we get a palindrome (245686542).

It can be divided in two parts, 1113 and 43431, that added together give a palindrome (44544).

The spelling of 111343431 in words is "one hundred eleven million, three hundred forty-three thousand, four hundred thirty-one".