1121587411 has 12 divisors (see below), whose sum is σ = 1321223520. Its totient is φ = 949188240.

The previous prime is 1121587373. The next prime is 1121587451. The reversal of 1121587411 is 1147851211.

It is not a de Polignac number, because 1121587411 - 2²⁷ = 987369683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121587451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141000 + ... + 148741.

It is an arithmetic number, because the mean of its divisors is an integer number (110101960).

Almost surely, 2^1121587411 is an apocalyptic number.

1121587411 is a deficient number, since it is larger than the sum of its proper divisors (199636109).

1121587411 is an equidigital number, since it uses as much as digits as its factorization.

1121587411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289834 (or 289827 counting only the distinct ones).

The product of its digits is 2240, while the sum is 31.

The square root of 1121587411 is about 33490.1091518078. The cubic root of 1121587411 is about 1038.9892210335.

The spelling of 1121587411 in words is "one billion, one hundred twenty-one million, five hundred eighty-seven thousand, four hundred eleven".