1100203053 has 8 divisors (see below), whose sum is σ = 1467196416. Its totient is φ = 733339200.

The previous prime is 1100203021. The next prime is 1100203079. The reversal of 1100203053 is 3503020011.

It is a happy number.

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

It is not a de Polignac number, because 1100203053 - 2⁵ = 1100203021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100203253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10428 + ... + 48053.

It is an arithmetic number, because the mean of its divisors is an integer number (183399552).

Almost surely, 2^1100203053 is an apocalyptic number.

It is an amenable number.

1100203053 is a deficient number, since it is larger than the sum of its proper divisors (366993363).

1100203053 is an equidigital number, since it uses as much as digits as its factorization.

1100203053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64755.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1100203053 is about 33169.3089014529. The cubic root of 1100203053 is about 1032.3436289952.

Adding to 1100203053 its reverse (3503020011), we get a palindrome (4603223064).

The spelling of 1100203053 in words is "one billion, one hundred million, two hundred three thousand, fifty-three".