1031222239361 has 2 divisors, whose sum is σ = 1031222239362. Its totient is φ = 1031222239360.

The previous prime is 1031222239331. The next prime is 1031222239373. The reversal of 1031222239361 is 1639322221301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1030955929600 + 266309761 = 1015360^2 + 16319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031222239361 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1031222239331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515611119680 + 515611119681.

It is an arithmetic number, because the mean of its divisors is an integer number (515611119681).

Almost surely, 2^{1031222239361} is an apocalyptic number.

It is an amenable number.

1031222239361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031222239361 is an equidigital number, since it uses as much as digits as its factorization.

1031222239361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 1031222239361 in words is "one trillion, thirty-one billion, two hundred twenty-two million, two hundred thirty-nine thousand, three hundred sixty-one".