1140321242 has 4 divisors (see below), whose sum is σ = 1710481866. Its totient is φ = 570160620.

The previous prime is 1140321239. The next prime is 1140321253. The reversal of 1140321242 is 2421230411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2421230411 = 49201 ⋅49211.

It can be written as a sum of positive squares in only one way, i.e., 1132928281 + 7392961 = 33659^2 + 2719^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285080309 + ... + 285080312.

Almost surely, 2^1140321242 is an apocalyptic number.

1140321242 is a deficient number, since it is larger than the sum of its proper divisors (570160624).

1140321242 is an equidigital number, since it uses as much as digits as its factorization.

1140321242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570160623.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1140321242 is about 33768.6428806371. The cubic root of 1140321242 is about 1044.7420414386.

Adding to 1140321242 its reverse (2421230411), we get a palindrome (3561551653).

The spelling of 1140321242 in words is "one billion, one hundred forty million, three hundred twenty-one thousand, two hundred forty-two".