1230320029 has 2 divisors, whose sum is σ = 1230320030. Its totient is φ = 1230320028.

The previous prime is 1230320023. The next prime is 1230320057. The reversal of 1230320029 is 9200230321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 659205625 + 571114404 = 25675^2 + 23898^2 .

It is an emirp because it is prime and its reverse (9200230321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230320029 - 2¹⁷ = 1230188957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230319991 and 1230320009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230320023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615160014 + 615160015.

It is an arithmetic number, because the mean of its divisors is an integer number (615160015).

Almost surely, 2^1230320029 is an apocalyptic number.

It is an amenable number.

1230320029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230320029 is an equidigital number, since it uses as much as digits as its factorization.

1230320029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1230320029 is about 35075.9180777923. The cubic root of 1230320029 is about 1071.5341863693.

The spelling of 1230320029 in words is "one billion, two hundred thirty million, three hundred twenty thousand, twenty-nine".