111242413 has 4 divisors (see below), whose sum is σ = 112389340. Its totient is φ = 110095488.

The previous prime is 111242399. The next prime is 111242429. The reversal of 111242413 is 314242111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17791524 + 93450889 = 4218^2 + 9667^2 .

It is a cyclic number.

It is not a de Polignac number, because 111242413 - 2⁵ = 111242381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111242213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573318 + ... + 573511.

It is an arithmetic number, because the mean of its divisors is an integer number (28097335).

Almost surely, 2^111242413 is an apocalyptic number.

It is an amenable number.

111242413 is a deficient number, since it is larger than the sum of its proper divisors (1146927).

111242413 is an equidigital number, since it uses as much as digits as its factorization.

111242413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146926.

The product of its digits is 192, while the sum is 19.

The square root of 111242413 is about 10547.1518904394. The cubic root of 111242413 is about 480.9391523169.

Adding to 111242413 its reverse (314242111), we get a palindrome (425484524).

The spelling of 111242413 in words is "one hundred eleven million, two hundred forty-two thousand, four hundred thirteen".