1031221301359 has 2 divisors, whose sum is σ = 1031221301360. Its totient is φ = 1031221301358.

The previous prime is 1031221301329. The next prime is 1031221301413. The reversal of 1031221301359 is 9531031221301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031221301359 - 2²¹ = 1031219204207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031221301359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031221301329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515610650679 + 515610650680.

It is an arithmetic number, because the mean of its divisors is an integer number (515610650680).

Almost surely, 2^{1031221301359} is an apocalyptic number.

1031221301359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031221301359 is an equidigital number, since it uses as much as digits as its factorization.

1031221301359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 1031221301359 in words is "one trillion, thirty-one billion, two hundred twenty-one million, three hundred one thousand, three hundred fifty-nine".