1121525303 has 4 divisors (see below), whose sum is σ = 1121995200. Its totient is φ = 1121055408.

The previous prime is 1121525297. The next prime is 1121525329. The reversal of 1121525303 is 3035251211.

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: 3035251211 = 47 ⋅64579813.

It is a cyclic number.

It is not a de Polignac number, because 1121525303 - 2¹² = 1121521207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121525393) 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, 231350 + ... + 236147.

It is an arithmetic number, because the mean of its divisors is an integer number (280498800).

Almost surely, 2^1121525303 is an apocalyptic number.

1121525303 is a deficient number, since it is larger than the sum of its proper divisors (469897).

1121525303 is an equidigital number, since it uses as much as digits as its factorization.

1121525303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469896.

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

The square root of 1121525303 is about 33489.1818801236. The cubic root of 1121525303 is about 1038.9700426401.

Adding to 1121525303 its reverse (3035251211), we get a palindrome (4156776514).

The spelling of 1121525303 in words is "one billion, one hundred twenty-one million, five hundred twenty-five thousand, three hundred three".