1001123245 has 8 divisors (see below), whose sum is σ = 1233816984. Its totient is φ = 779252544.

The previous prime is 1001123219. The next prime is 1001123261. The reversal of 1001123245 is 5423211001.

It can be written as a sum of positive squares in 4 ways, for example, as 542563849 + 458559396 = 23293^2 + 21414^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001123245 - 2⁵ = 1001123213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2705554 + ... + 2705923.

It is an arithmetic number, because the mean of its divisors is an integer number (154227123).

Almost surely, 2^1001123245 is an apocalyptic number.

It is an amenable number.

1001123245 is a deficient number, since it is larger than the sum of its proper divisors (232693739).

1001123245 is an equidigital number, since it uses as much as digits as its factorization.

1001123245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411519.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1001123245 is about 31640.5316801093. The cubic root of 1001123245 is about 1000.3742749008.

Adding to 1001123245 its reverse (5423211001), we get a palindrome (6424334246).

The spelling of 1001123245 in words is "one billion, one million, one hundred twenty-three thousand, two hundred forty-five".