111437423 has 12 divisors (see below), whose sum is σ = 115865352. Its totient is φ = 107148720.

The previous prime is 111437419. The next prime is 111437471. The reversal of 111437423 is 324734111.

It is not a de Polignac number, because 111437423 - 2² = 111437419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111437392 and 111437401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111437483) 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, 134336 + ... + 135162.

It is an arithmetic number, because the mean of its divisors is an integer number (9655446).

Almost surely, 2^111437423 is an apocalyptic number.

111437423 is a deficient number, since it is larger than the sum of its proper divisors (4427929).

111437423 is an frugal number, since it uses more digits than its factorization.

111437423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 935 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 111437423 is about 10556.3925182801. The cubic root of 111437423 is about 481.2200199911.

The spelling of 111437423 in words is "one hundred eleven million, four hundred thirty-seven thousand, four hundred twenty-three".