1121115051 has 24 divisors (see below), whose sum is σ = 1888504800. Its totient is φ = 640635408.

The previous prime is 1121115041. The next prime is 1121115067. The reversal of 1121115051 is 1505111211.

It is not a de Polignac number, because 1121115051 - 2⁵ = 1121115019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121115041) 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 23 ways as a sum of consecutive naturals, for example, 178500 + ... + 184673.

It is an arithmetic number, because the mean of its divisors is an integer number (78687700).

Almost surely, 2^1121115051 is an apocalyptic number.

1121115051 is a deficient number, since it is larger than the sum of its proper divisors (767389749).

1121115051 is an equidigital number, since it uses as much as digits as its factorization.

1121115051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363200 (or 363183 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 18.

The square root of 1121115051 is about 33483.0561777147. The cubic root of 1121115051 is about 1038.8433427134.

Adding to 1121115051 its reverse (1505111211), we get a palindrome (2626226262).

It can be divided in two parts, 11211 and 15051, that added together give a palindrome (26262).

The spelling of 1121115051 in words is "one billion, one hundred twenty-one million, one hundred fifteen thousand, fifty-one".