1230445231 has 2 divisors, whose sum is σ = 1230445232. Its totient is φ = 1230445230.

The previous prime is 1230445217. The next prime is 1230445241. The reversal of 1230445231 is 1325440321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230445231 - 2⁵ = 1230445199 is a prime.

It is a super-2 number, since 2×1230445231² = 3027990932981286722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1230445196 and 1230445205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230445241) 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 as a sum of consecutive naturals, namely, 615222615 + 615222616.

It is an arithmetic number, because the mean of its divisors is an integer number (615222616).

Almost surely, 2^1230445231 is an apocalyptic number.

1230445231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230445231 is an equidigital number, since it uses as much as digits as its factorization.

1230445231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1230445231 is about 35077.7027611558. The cubic root of 1230445231 is about 1071.5705329213.

Adding to 1230445231 its reverse (1325440321), we get a palindrome (2555885552).

The spelling of 1230445231 in words is "one billion, two hundred thirty million, four hundred forty-five thousand, two hundred thirty-one".