1161323038 has 32 divisors (see below), whose sum is σ = 1894233600. Its totient is φ = 532320096.

The previous prime is 1161323017. The next prime is 1161323039. The reversal of 1161323038 is 8303231611.

It is a junction number, because it is equal to n+sod(n) for n = 1161322997 and 1161323015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161323039) 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 15 ways as a sum of consecutive naturals, for example, 182295 + ... + 188557.

It is an arithmetic number, because the mean of its divisors is an integer number (59194800).

Almost surely, 2^1161323038 is an apocalyptic number.

1161323038 is a deficient number, since it is larger than the sum of its proper divisors (732910562).

1161323038 is a wasteful number, since it uses less digits than its factorization.

1161323038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6456.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1161323038 is about 34078.1900634409. The cubic root of 1161323038 is about 1051.1168880345.

Adding to 1161323038 its reverse (8303231611), we get a palindrome (9464554649).

The spelling of 1161323038 in words is "one billion, one hundred sixty-one million, three hundred twenty-three thousand, thirty-eight".