1233204431 has 2 divisors, whose sum is σ = 1233204432. Its totient is φ = 1233204430.

The previous prime is 1233204421. The next prime is 1233204433. The reversal of 1233204431 is 1344023321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1233204431 - 2¹⁸ = 1232942287 is a prime.

It is a super-2 number, since 2×1233204431² = 3041586337276067522, which contains 22 as substring.

Together with 1233204433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1233204397 and 1233204406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233204433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616602215 + 616602216.

It is an arithmetic number, because the mean of its divisors is an integer number (616602216).

Almost surely, 2^1233204431 is an apocalyptic number.

1233204431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233204431 is an equidigital number, since it uses as much as digits as its factorization.

1233204431 is an evil number, because the sum of its binary digits is even.

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

The square root of 1233204431 is about 35117.0105646822. The cubic root of 1233204431 is about 1072.3709126081.

Adding to 1233204431 its reverse (1344023321), we get a palindrome (2577227752).

The spelling of 1233204431 in words is "one billion, two hundred thirty-three million, two hundred four thousand, four hundred thirty-one".