1161241223 has 8 divisors (see below), whose sum is σ = 1183606368. Its totient is φ = 1139088384.

The previous prime is 1161241163. The next prime is 1161241231. The reversal of 1161241223 is 3221421611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161241223 - 2¹² = 1161237127 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 (1161246223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42011 + ... + 63932.

It is an arithmetic number, because the mean of its divisors is an integer number (147950796).

Almost surely, 2^1161241223 is an apocalyptic number.

1161241223 is a deficient number, since it is larger than the sum of its proper divisors (22365145).

1161241223 is a wasteful number, since it uses less digits than its factorization.

1161241223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106153.

The product of its digits is 576, while the sum is 23.

The square root of 1161241223 is about 34076.9896411053. The cubic root of 1161241223 is about 1051.0922037894.

Adding to 1161241223 its reverse (3221421611), we get a palindrome (4382662834).

The spelling of 1161241223 in words is "one billion, one hundred sixty-one million, two hundred forty-one thousand, two hundred twenty-three".