1151253203 has 4 divisors (see below), whose sum is σ = 1175748000. Its totient is φ = 1126758408.

The previous prime is 1151253197. The next prime is 1151253221. The reversal of 1151253203 is 3023521511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023521511 = 23 ⋅131457457.

It is a cyclic number.

It is not a de Polignac number, because 1151253203 - 2⁶ = 1151253139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151253403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12247328 + ... + 12247421.

It is an arithmetic number, because the mean of its divisors is an integer number (293937000).

Almost surely, 2^1151253203 is an apocalyptic number.

1151253203 is a deficient number, since it is larger than the sum of its proper divisors (24494797).

1151253203 is an equidigital number, since it uses as much as digits as its factorization.

1151253203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24494796.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1151253203 is about 33930.1223546276. The cubic root of 1151253203 is about 1048.0699853594.

Adding to 1151253203 its reverse (3023521511), we get a palindrome (4174774714).

The spelling of 1151253203 in words is "one billion, one hundred fifty-one million, two hundred fifty-three thousand, two hundred three".