1115055203 has 8 divisors (see below), whose sum is σ = 1164354048. Its totient is φ = 1065824584.

The previous prime is 1115055163. The next prime is 1115055209. The reversal of 1115055203 is 3025505111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1115055203 - 2⁸ = 1115054947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115055209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17900 + ... + 50502.

It is an arithmetic number, because the mean of its divisors is an integer number (145544256).

Almost surely, 2^1115055203 is an apocalyptic number.

1115055203 is a deficient number, since it is larger than the sum of its proper divisors (49298845).

1115055203 is a wasteful number, since it uses less digits than its factorization.

1115055203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34113.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1115055203 is about 33392.4423036112. The cubic root of 1115055203 is about 1036.9682424862.

The spelling of 1115055203 in words is "one billion, one hundred fifteen million, fifty-five thousand, two hundred three".