1121026125 has 64 divisors (see below), whose sum is σ = 2009779200. Its totient is φ = 553089600.

The previous prime is 1121026073. The next prime is 1121026139. The reversal of 1121026125 is 5216201211.

It is not a de Polignac number, because 1121026125 - 2¹⁷ = 1120895053 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 304546 + ... + 308204.

It is an arithmetic number, because the mean of its divisors is an integer number (31402800).

Almost surely, 2^1121026125 is an apocalyptic number.

1121026125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121026125 is a deficient number, since it is larger than the sum of its proper divisors (888753075).

1121026125 is a wasteful number, since it uses less digits than its factorization.

1121026125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3739 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1121026125 is about 33481.7282260041. The cubic root of 1121026125 is about 1038.8158752304.

Adding to 1121026125 its reverse (5216201211), we get a palindrome (6337227336).

The spelling of 1121026125 in words is "one billion, one hundred twenty-one million, twenty-six thousand, one hundred twenty-five".