1204423331 has 4 divisors (see below), whose sum is σ = 1245955200. Its totient is φ = 1162891464.

The previous prime is 1204423247. The next prime is 1204423333. The reversal of 1204423331 is 1333244021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333244021 = 1847 ⋅721843.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204423331 is a prime.

It is a super-2 number, since 2×1204423331² = 2901271120514271122, 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 = 1204423297 and 1204423306.

It is not an unprimeable number, because it can be changed into a prime (1204423333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20765891 + ... + 20765948.

It is an arithmetic number, because the mean of its divisors is an integer number (311488800).

Almost surely, 2^1204423331 is an apocalyptic number.

1204423331 is a deficient number, since it is larger than the sum of its proper divisors (41531869).

1204423331 is an equidigital number, since it uses as much as digits as its factorization.

1204423331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41531868.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1204423331 is about 34704.8027079827. The cubic root of 1204423331 is about 1063.9626599833.

Adding to 1204423331 its reverse (1333244021), we get a palindrome (2537667352).

The spelling of 1204423331 in words is "one billion, two hundred four million, four hundred twenty-three thousand, three hundred thirty-one".