111343403 has 2 divisors, whose sum is σ = 111343404. Its totient is φ = 111343402.

The previous prime is 111343399. The next prime is 111343429. The reversal of 111343403 is 304343111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111343403 - 2² = 111343399 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111343493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55671701 + 55671702.

It is an arithmetic number, because the mean of its divisors is an integer number (55671702).

Almost surely, 2^111343403 is an apocalyptic number.

111343403 is a deficient number, since it is larger than the sum of its proper divisors (1).

111343403 is an equidigital number, since it uses as much as digits as its factorization.

111343403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 111343403 is about 10551.9383527388. The cubic root of 111343403 is about 481.0846464476.

Adding to 111343403 its reverse (304343111), we get a palindrome (415686514).

The spelling of 111343403 in words is "one hundred eleven million, three hundred forty-three thousand, four hundred three".