1020331229 has 2 divisors, whose sum is σ = 1020331230. Its totient is φ = 1020331228.

The previous prime is 1020331199. The next prime is 1020331231. The reversal of 1020331229 is 9221330201.

1020331229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 922519129 + 97812100 = 30373^2 + 9890^2 .

It is an emirp because it is prime and its reverse (9221330201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020331229 - 2²⁸ = 751895773 is a prime.

Together with 1020331231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020331259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510165614 + 510165615.

It is an arithmetic number, because the mean of its divisors is an integer number (510165615).

Almost surely, 2^1020331229 is an apocalyptic number.

It is an amenable number.

1020331229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020331229 is an equidigital number, since it uses as much as digits as its factorization.

1020331229 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 23.

The square root of 1020331229 is about 31942.6240155689. The cubic root of 1020331229 is about 1006.7316594126.

The spelling of 1020331229 in words is "one billion, twenty million, three hundred thirty-one thousand, two hundred twenty-nine".