1171433263 has 128 divisors (see below), whose sum is σ = 1804529664. Its totient is φ = 729907200.

The previous prime is 1171433243. The next prime is 1171433281. The reversal of 1171433263 is 3623341711.

It is not a de Polignac number, because 1171433263 - 2⁹ = 1171432751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171433233) 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 127 ways as a sum of consecutive naturals, for example, 16046995 + ... + 16047067.

It is an arithmetic number, because the mean of its divisors is an integer number (14097888).

Almost surely, 2^1171433263 is an apocalyptic number.

1171433263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1171433263 is a deficient number, since it is larger than the sum of its proper divisors (633096401).

1171433263 is a wasteful number, since it uses less digits than its factorization.

1171433263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185.

The product of its digits is 9072, while the sum is 31.

The square root of 1171433263 is about 34226.2072540911. The cubic root of 1171433263 is about 1054.1583437200.

Adding to 1171433263 its reverse (3623341711), we get a palindrome (4794774974).

It can be divided in two parts, 1171 and 433263, that added together give a palindrome (434434).

The spelling of 1171433263 in words is "one billion, one hundred seventy-one million, four hundred thirty-three thousand, two hundred sixty-three".