1200030397 has 2 divisors, whose sum is σ = 1200030398. Its totient is φ = 1200030396.

The previous prime is 1200030383. The next prime is 1200030407. The reversal of 1200030397 is 7930300021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1029832281 + 170198116 = 32091^2 + 13046^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200030397 - 2⁷ = 1200030269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200070397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600015198 + 600015199.

It is an arithmetic number, because the mean of its divisors is an integer number (600015199).

Almost surely, 2^1200030397 is an apocalyptic number.

It is an amenable number.

1200030397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200030397 is an equidigital number, since it uses as much as digits as its factorization.

1200030397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 1200030397 is about 34641.4548915025. The cubic root of 1200030397 is about 1062.6675417826.

The spelling of 1200030397 in words is "one billion, two hundred million, thirty thousand, three hundred ninety-seven".