1230031120217 has 2 divisors, whose sum is σ = 1230031120218. Its totient is φ = 1230031120216.

The previous prime is 1230031120193. The next prime is 1230031120237. The reversal of 1230031120217 is 7120211300321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1178394920521 + 51636199696 = 1085539^2 + 227236^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230031120217 - 2³⁰ = 1228957378393 is a prime.

It is a super-2 number, since 2×1230031120217² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1230031120192 and 1230031120201.

It is not a weakly prime, because it can be changed into another prime (1230031120237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615015560108 + 615015560109.

It is an arithmetic number, because the mean of its divisors is an integer number (615015560109).

Almost surely, 2^{1230031120217} is an apocalyptic number.

It is an amenable number.

1230031120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230031120217 is an equidigital number, since it uses as much as digits as its factorization.

1230031120217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 1230031120217 its reverse (7120211300321), we get a palindrome (8350242420538).

The spelling of 1230031120217 in words is "one trillion, two hundred thirty billion, thirty-one million, one hundred twenty thousand, two hundred seventeen".