1210231019 has 2 divisors, whose sum is σ = 1210231020. Its totient is φ = 1210231018.

The previous prime is 1210231013. The next prime is 1210231021. The reversal of 1210231019 is 9101320121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210231019 - 2²⁴ = 1193453803 is a prime.

It is a super-2 number, since 2×1210231019² = 2929318238699556722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1210231021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1210231013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605115509 + 605115510.

It is an arithmetic number, because the mean of its divisors is an integer number (605115510).

Almost surely, 2^1210231019 is an apocalyptic number.

1210231019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210231019 is an equidigital number, since it uses as much as digits as its factorization.

1210231019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1210231019 is about 34788.3747680170. The cubic root of 1210231019 is about 1065.6700490801.

The spelling of 1210231019 in words is "one billion, two hundred ten million, two hundred thirty-one thousand, nineteen".