1021231404317 has 2 divisors, whose sum is σ = 1021231404318. Its totient is φ = 1021231404316.

The previous prime is 1021231404247. The next prime is 1021231404341. The reversal of 1021231404317 is 7134041321201.

1021231404317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989509657081 + 31721747236 = 994741^2 + 178106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021231404317 - 2¹⁰ = 1021231403293 is a prime.

It is a super-4 number, since 4×1021231404317⁴ (a number of 49 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021231404317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021231406317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510615702158 + 510615702159.

It is an arithmetic number, because the mean of its divisors is an integer number (510615702159).

Almost surely, 2^{1021231404317} is an apocalyptic number.

It is an amenable number.

1021231404317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021231404317 is an equidigital number, since it uses as much as digits as its factorization.

1021231404317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 1021231404317 its reverse (7134041321201), we get a palindrome (8155272725518).

The spelling of 1021231404317 in words is "one trillion, twenty-one billion, two hundred thirty-one million, four hundred four thousand, three hundred seventeen".