1161213242 has 8 divisors (see below), whose sum is σ = 1990651296. Its totient is φ = 497662812.

The previous prime is 1161213223. The next prime is 1161213269. The reversal of 1161213242 is 2423121611.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41471888 + ... + 41471915.

It is an arithmetic number, because the mean of its divisors is an integer number (248831412).

Almost surely, 2^1161213242 is an apocalyptic number.

1161213242 is a deficient number, since it is larger than the sum of its proper divisors (829438054).

1161213242 is an equidigital number, since it uses as much as digits as its factorization.

1161213242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82943812.

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

The square root of 1161213242 is about 34076.5790830007. The cubic root of 1161213242 is about 1051.0837614300.

Adding to 1161213242 its reverse (2423121611), we get a palindrome (3584334853).

The spelling of 1161213242 in words is "one billion, one hundred sixty-one million, two hundred thirteen thousand, two hundred forty-two".