1121240115 has 24 divisors (see below), whose sum is σ = 1945767408. Its totient is φ = 597291840.

The previous prime is 1121240039. The next prime is 1121240123. The reversal of 1121240115 is 5110421211.

It is not a de Polignac number, because 1121240115 - 2⁸ = 1121239859 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 25260 + ... + 53670.

It is an arithmetic number, because the mean of its divisors is an integer number (81073642).

Almost surely, 2^1121240115 is an apocalyptic number.

1121240115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1121240115 is a deficient number, since it is larger than the sum of its proper divisors (824527293).

1121240115 is a wasteful number, since it uses less digits than its factorization.

1121240115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29299 (or 29296 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1121240115 is about 33484.9236970909. The cubic root of 1121240115 is about 1038.8819700523.

Adding to 1121240115 its reverse (5110421211), we get a palindrome (6231661326).

The spelling of 1121240115 in words is "one billion, one hundred twenty-one million, two hundred forty thousand, one hundred fifteen".