1042340204417 has 2 divisors, whose sum is σ = 1042340204418. Its totient is φ = 1042340204416.

The previous prime is 1042340204363. The next prime is 1042340204419. The reversal of 1042340204417 is 7144020432401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575791098481 + 466549105936 = 758809^2 + 683044^2 .

It is an emirp because it is prime and its reverse (7144020432401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042340204417 - 2⁸ = 1042340204161 is a prime.

Together with 1042340204419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1042340204419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521170102208 + 521170102209.

It is an arithmetic number, because the mean of its divisors is an integer number (521170102209).

Almost surely, 2^{1042340204417} is an apocalyptic number.

It is an amenable number.

1042340204417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042340204417 is an equidigital number, since it uses as much as digits as its factorization.

1042340204417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 1042340204417 its reverse (7144020432401), we get a palindrome (8186360636818).

The spelling of 1042340204417 in words is "one trillion, forty-two billion, three hundred forty million, two hundred four thousand, four hundred seventeen".