1204442231 has 4 divisors (see below), whose sum is σ = 1275291792. Its totient is φ = 1133592672.

The previous prime is 1204442209. The next prime is 1204442263. The reversal of 1204442231 is 1322444021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322444021 = 26227 ⋅50423.

It is a cyclic number.

It is not a de Polignac number, because 1204442231 - 2³⁰ = 130700407 is a prime.

It is a super-2 number, since 2×1204442231² = 2901362175632514722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204442197 and 1204442206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204442131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35424755 + ... + 35424788.

It is an arithmetic number, because the mean of its divisors is an integer number (318822948).

Almost surely, 2^1204442231 is an apocalyptic number.

1204442231 is a deficient number, since it is larger than the sum of its proper divisors (70849561).

1204442231 is an equidigital number, since it uses as much as digits as its factorization.

1204442231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70849560.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1204442231 is about 34705.0750035207. The cubic root of 1204442231 is about 1063.9682252439.

Adding to 1204442231 its reverse (1322444021), we get a palindrome (2526886252).

The spelling of 1204442231 in words is "one billion, two hundred four million, four hundred forty-two thousand, two hundred thirty-one".