111213043 has 4 divisors (see below), whose sum is σ = 111237840. Its totient is φ = 111188248.

The previous prime is 111213041. The next prime is 111213049. The reversal of 111213043 is 340312111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340312111 = 233 ⋅1460567.

It is a cyclic number.

It is not a de Polignac number, because 111213043 - 2¹ = 111213041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111213041) 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, 3580 + ... + 15337.

It is an arithmetic number, because the mean of its divisors is an integer number (27809460).

Almost surely, 2^111213043 is an apocalyptic number.

111213043 is a deficient number, since it is larger than the sum of its proper divisors (24797).

111213043 is an equidigital number, since it uses as much as digits as its factorization.

111213043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24796.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 111213043 is about 10545.7594795254. The cubic root of 111213043 is about 480.8968230596.

Adding to 111213043 its reverse (340312111), we get a palindrome (451525154).

The spelling of 111213043 in words is "one hundred eleven million, two hundred thirteen thousand, forty-three".