1115422043 has 4 divisors (see below), whose sum is σ = 1122526800. Its totient is φ = 1108317288.

The previous prime is 1115422031. The next prime is 1115422069. The reversal of 1115422043 is 3402245111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3402245111 = 2371 ⋅1434941.

It is a cyclic number.

It is not a de Polignac number, because 1115422043 - 2⁸ = 1115421787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115422543) 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, 3552143 + ... + 3552456.

It is an arithmetic number, because the mean of its divisors is an integer number (280631700).

Almost surely, 2^1115422043 is an apocalyptic number.

1115422043 is a deficient number, since it is larger than the sum of its proper divisors (7104757).

1115422043 is an equidigital number, since it uses as much as digits as its factorization.

1115422043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104756.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1115422043 is about 33397.9347115956. The cubic root of 1115422043 is about 1037.0819467886.

Adding to 1115422043 its reverse (3402245111), we get a palindrome (4517667154).

The spelling of 1115422043 in words is "one billion, one hundred fifteen million, four hundred twenty-two thousand, forty-three".