1121025321 has 24 divisors (see below), whose sum is σ = 1786356936. Its totient is φ = 673032960.

The previous prime is 1121025287. The next prime is 1121025331. The reversal of 1121025321 is 1235201211.

It can be written as a sum of positive squares in 4 ways, for example, as 58982400 + 1062042921 = 7680^2 + 32589^2 .

It is not a de Polignac number, because 1121025321 - 2¹³ = 1121017129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121025294 and 1121025303.

It is not an unprimeable number, because it can be changed into a prime (1121025331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112050 + ... + 121643.

It is an arithmetic number, because the mean of its divisors is an integer number (74431539).

Almost surely, 2^1121025321 is an apocalyptic number.

It is an amenable number.

1121025321 is a deficient number, since it is larger than the sum of its proper divisors (665331615).

1121025321 is a wasteful number, since it uses less digits than its factorization.

1121025321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233753 (or 233750 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1121025321 is about 33481.7162194533. The cubic root of 1121025321 is about 1038.8156268841.

Adding to 1121025321 its reverse (1235201211), we get a palindrome (2356226532).

The spelling of 1121025321 in words is "one billion, one hundred twenty-one million, twenty-five thousand, three hundred twenty-one".