1141204121 has 4 divisors (see below), whose sum is σ = 1144804452. Its totient is φ = 1137603792.

The previous prime is 1141204111. The next prime is 1141204153. The reversal of 1141204121 is 1214021411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1214021411 = 31 ⋅39161981.

It can be written as a sum of positive squares in 2 ways, for example, as 83978896 + 1057225225 = 9164^2 + 32515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141204121 - 2¹⁴ = 1141187737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1141204121.

It is not an unprimeable number, because it can be changed into a prime (1141204111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799690 + ... + 1800323.

It is an arithmetic number, because the mean of its divisors is an integer number (286201113).

Almost surely, 2^1141204121 is an apocalyptic number.

It is an amenable number.

1141204121 is a deficient number, since it is larger than the sum of its proper divisors (3600331).

1141204121 is an equidigital number, since it uses as much as digits as its factorization.

1141204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600330.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1141204121 is about 33781.7128192163. The cubic root of 1141204121 is about 1045.0115978964.

Adding to 1141204121 its reverse (1214021411), we get a palindrome (2355225532).

The spelling of 1141204121 in words is "one billion, one hundred forty-one million, two hundred four thousand, one hundred twenty-one".