1151121441 has 16 divisors (see below), whose sum is σ = 1616963840. Its totient is φ = 726414480.

The previous prime is 1151121383. The next prime is 1151121443. The reversal of 1151121441 is 1441211511.

It is not a de Polignac number, because 1151121441 - 2¹¹ = 1151119393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1151121443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65766 + ... + 81408.

It is an arithmetic number, because the mean of its divisors is an integer number (101060240).

Almost surely, 2^1151121441 is an apocalyptic number.

It is an amenable number.

1151121441 is a deficient number, since it is larger than the sum of its proper divisors (465842399).

1151121441 is a wasteful number, since it uses less digits than its factorization.

1151121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16956.

The product of its digits is 160, while the sum is 21.

The square root of 1151121441 is about 33928.1806320351. The cubic root of 1151121441 is about 1048.0299996390.

Adding to 1151121441 its reverse (1441211511), we get a palindrome (2592332952).

The spelling of 1151121441 in words is "one billion, one hundred fifty-one million, one hundred twenty-one thousand, four hundred forty-one".