1156232303 has 4 divisors (see below), whose sum is σ = 1159998840. Its totient is φ = 1152465768.

The previous prime is 1156232299. The next prime is 1156232353. The reversal of 1156232303 is 3032326511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3032326511 = 1009 ⋅3005279.

It is a cyclic number.

It is not a de Polignac number, because 1156232303 - 2² = 1156232299 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 (1156232353) 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, 1882808 + ... + 1883421.

It is an arithmetic number, because the mean of its divisors is an integer number (289999710).

Almost surely, 2^1156232303 is an apocalyptic number.

1156232303 is a deficient number, since it is larger than the sum of its proper divisors (3766537).

1156232303 is an equidigital number, since it uses as much as digits as its factorization.

1156232303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766536.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1156232303 is about 34003.4160489795. The cubic root of 1156232303 is about 1049.5787586168.

Adding to 1156232303 its reverse (3032326511), we get a palindrome (4188558814).

The spelling of 1156232303 in words is "one billion, one hundred fifty-six million, two hundred thirty-two thousand, three hundred three".