1121133242 has 4 divisors (see below), whose sum is σ = 1681699866. Its totient is φ = 560566620.

The previous prime is 1121133241. The next prime is 1121133269. The reversal of 1121133242 is 2423311211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1118969401 + 2163841 = 33451^2 + 1471^2 .

It is not an unprimeable number, because it can be changed into a prime (1121133241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280283309 + ... + 280283312.

Almost surely, 2^1121133242 is an apocalyptic number.

1121133242 is a deficient number, since it is larger than the sum of its proper divisors (560566624).

1121133242 is an equidigital number, since it uses as much as digits as its factorization.

1121133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560566623.

The product of its digits is 288, while the sum is 20.

The square root of 1121133242 is about 33483.3278214696. The cubic root of 1121133242 is about 1038.8489613746.

Adding to 1121133242 its reverse (2423311211), we get a palindrome (3544444453).

The spelling of 1121133242 in words is "one billion, one hundred twenty-one million, one hundred thirty-three thousand, two hundred forty-two".