1101243425 has 24 divisors (see below), whose sum is σ = 1460828376. Its totient is φ = 820592640.

The previous prime is 1101243413. The next prime is 1101243433. The reversal of 1101243425 is 5243421011.

It can be written as a sum of positive squares in 12 ways, for example, as 9535744 + 1091707681 = 3088^2 + 33041^2 .

It is not a de Polignac number, because 1101243425 - 2¹⁸ = 1100981281 is a prime.

It is a super-2 number, since 2×1101243425² = 2425474162211461250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101243425.

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 23 ways as a sum of consecutive naturals, for example, 27869 + ... + 54581.

It is an arithmetic number, because the mean of its divisors is an integer number (60867849).

Almost surely, 2^1101243425 is an apocalyptic number.

It is an amenable number.

1101243425 is a deficient number, since it is larger than the sum of its proper divisors (359584951).

1101243425 is a wasteful number, since it uses less digits than its factorization.

1101243425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26837 (or 26832 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1101243425 is about 33184.9879463591. The cubic root of 1101243425 is about 1032.6689274459.

Adding to 1101243425 its reverse (5243421011), we get a palindrome (6344664436).

The spelling of 1101243425 in words is "one billion, one hundred one million, two hundred forty-three thousand, four hundred twenty-five".