1121241443125 has 10 divisors (see below), whose sum is σ = 1401103308110. Its totient is φ = 896993154000.

The previous prime is 1121241443123. The next prime is 1121241443197. The reversal of 1121241443125 is 5213441421211.

It can be written as a sum of positive squares in 5 ways, for example, as 140852341809 + 980389101316 = 375303^2 + 990146^2 .

It is not a de Polignac number, because 1121241443125 - 2¹ = 1121241443123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121241443123) 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 9 ways as a sum of consecutive naturals, for example, 896992530 + ... + 896993779.

It is an arithmetic number, because the mean of its divisors is an integer number (140110330811).

Almost surely, 2^{1121241443125} is an apocalyptic number.

It is an amenable number.

1121241443125 is a deficient number, since it is larger than the sum of its proper divisors (279861864985).

1121241443125 is an frugal number, since it uses more digits than its factorization.

1121241443125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793986329 (or 1793986314 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

Adding to 1121241443125 its reverse (5213441421211), we get a palindrome (6334682864336).

The spelling of 1121241443125 in words is "one trillion, one hundred twenty-one billion, two hundred forty-one million, four hundred forty-three thousand, one hundred twenty-five".