1021314313109 has 2 divisors, whose sum is σ = 1021314313110. Its totient is φ = 1021314313108.

The previous prime is 1021314313099. The next prime is 1021314313147. The reversal of 1021314313109 is 9013134131201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 581086044100 + 440228269009 = 762290^2 + 663497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021314313109 - 2¹² = 1021314309013 is a prime.

It is a super-2 number, since 2×1021314313109² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021314313709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510657156554 + 510657156555.

It is an arithmetic number, because the mean of its divisors is an integer number (510657156555).

Almost surely, 2^{1021314313109} is an apocalyptic number.

It is an amenable number.

1021314313109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021314313109 is an equidigital number, since it uses as much as digits as its factorization.

1021314313109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 1021314313109 in words is "one trillion, twenty-one billion, three hundred fourteen million, three hundred thirteen thousand, one hundred nine".