1031210320219 has 2 divisors, whose sum is σ = 1031210320220. Its totient is φ = 1031210320218.

The previous prime is 1031210320171. The next prime is 1031210320249. The reversal of 1031210320219 is 9120230121301.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031210320219 is a prime.

It is a super-2 number, since 2×1031210320219² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031210320193 and 1031210320202.

It is not a weakly prime, because it can be changed into another prime (1031210320249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515605160109 + 515605160110.

It is an arithmetic number, because the mean of its divisors is an integer number (515605160110).

Almost surely, 2^{1031210320219} is an apocalyptic number.

1031210320219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031210320219 is an equidigital number, since it uses as much as digits as its factorization.

1031210320219 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 25.

The spelling of 1031210320219 in words is "one trillion, thirty-one billion, two hundred ten million, three hundred twenty thousand, two hundred nineteen".