1230204431 has 2 divisors, whose sum is σ = 1230204432. Its totient is φ = 1230204430.

The previous prime is 1230204413. The next prime is 1230204497. The reversal of 1230204431 is 1344020321.

Together with previous prime (1230204413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230204431 - 2²⁶ = 1163095567 is a prime.

It is a super-2 number, since 2×1230204431² = 3026805884104067522, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230200431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615102215 + 615102216.

It is an arithmetic number, because the mean of its divisors is an integer number (615102216).

Almost surely, 2^1230204431 is an apocalyptic number.

1230204431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230204431 is an equidigital number, since it uses as much as digits as its factorization.

1230204431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230204431 is about 35074.2702133630. The cubic root of 1230204431 is about 1071.5006257006.

Adding to 1230204431 its reverse (1344020321), we get a palindrome (2574224752).

The spelling of 1230204431 in words is "one billion, two hundred thirty million, two hundred four thousand, four hundred thirty-one".