1230424621 has 2 divisors, whose sum is σ = 1230424622. Its totient is φ = 1230424620.

The previous prime is 1230424579. The next prime is 1230424639. The reversal of 1230424621 is 1264240321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840362121 + 390062500 = 28989^2 + 19750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230424621 - 2⁹ = 1230424109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230424681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615212310 + 615212311.

It is an arithmetic number, because the mean of its divisors is an integer number (615212311).

Almost surely, 2^1230424621 is an apocalyptic number.

It is an amenable number.

1230424621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230424621 is an equidigital number, since it uses as much as digits as its factorization.

1230424621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1230424621 is about 35077.4089835609. The cubic root of 1230424621 is about 1071.5645499401.

Adding to 1230424621 its reverse (1264240321), we get a palindrome (2494664942).

The spelling of 1230424621 in words is "one billion, two hundred thirty million, four hundred twenty-four thousand, six hundred twenty-one".