1131242411 has 8 divisors (see below), whose sum is σ = 1260270480. Its totient is φ = 1008215712.

The previous prime is 1131242401. The next prime is 1131242423. The reversal of 1131242411 is 1142421311.

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 1131242411 - 2⁶ = 1131242347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131242401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499945 + ... + 1500698.

It is an arithmetic number, because the mean of its divisors is an integer number (157533810).

Almost surely, 2^1131242411 is an apocalyptic number.

1131242411 is a deficient number, since it is larger than the sum of its proper divisors (129028069).

1131242411 is a wasteful number, since it uses less digits than its factorization.

1131242411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000685.

The product of its digits is 192, while the sum is 20.

The square root of 1131242411 is about 33633.9473003095. The cubic root of 1131242411 is about 1041.9620293462.

Adding to 1131242411 its reverse (1142421311), we get a palindrome (2273663722).

The spelling of 1131242411 in words is "one billion, one hundred thirty-one million, two hundred forty-two thousand, four hundred eleven".