1121441511 has 16 divisors (see below), whose sum is σ = 1520107904. Its totient is φ = 735238944.

The previous prime is 1121441509. The next prime is 1121441527. The reversal of 1121441511 is 1151441211.

It is not a de Polignac number, because 1121441511 - 2¹ = 1121441509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121441501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124905 + ... + 133581.

It is an arithmetic number, because the mean of its divisors is an integer number (95006744).

Almost surely, 2^1121441511 is an apocalyptic number.

1121441511 is a deficient number, since it is larger than the sum of its proper divisors (398666393).

1121441511 is an equidigital number, since it uses as much as digits as its factorization.

1121441511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

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

The square root of 1121441511 is about 33487.9308258961. The cubic root of 1121441511 is about 1038.9441673000.

Adding to 1121441511 its reverse (1151441211), we get a palindrome (2272882722).

It can be divided in two parts, 11214 and 41511, that added together give a palindrome (52725).

The spelling of 1121441511 in words is "one billion, one hundred twenty-one million, four hundred forty-one thousand, five hundred eleven".