111423442 has 8 divisors (see below), whose sum is σ = 179991756. Its totient is φ = 51426192.

The previous prime is 111423421. The next prime is 111423463. The reversal of 111423442 is 244324111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111423421) and next prime (111423463).

It can be written as a sum of positive squares in 2 ways, for example, as 109432521 + 1990921 = 10461^2 + 1411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142733 + ... + 2142784.

Almost surely, 2^111423442 is an apocalyptic number.

111423442 is a deficient number, since it is larger than the sum of its proper divisors (68568314).

111423442 is a wasteful number, since it uses less digits than its factorization.

111423442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285532.

The product of its digits is 768, while the sum is 22.

The square root of 111423442 is about 10555.7302921210. The cubic root of 111423442 is about 481.1998944405.

Adding to 111423442 its reverse (244324111), we get a palindrome (355747553).

The spelling of 111423442 in words is "one hundred eleven million, four hundred twenty-three thousand, four hundred forty-two".