10340400404297 has 2 divisors, whose sum is σ = 10340400404298. Its totient is φ = 10340400404296.

The previous prime is 10340400404293. The next prime is 10340400404303. The reversal of 10340400404297 is 79240400404301.

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., 5474387947081 + 4866012457216 = 2339741^2 + 2205904^2 .

It is a cyclic number.

It is not a de Polignac number, because 10340400404297 - 2² = 10340400404293 is a prime.

It is a super-2 number, since 2×10340400404297² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10340400404297.

It is not a weakly prime, because it can be changed into another prime (10340400404293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5170200202148 + 5170200202149.

It is an arithmetic number, because the mean of its divisors is an integer number (5170200202149).

Almost surely, 2^{10340400404297} is an apocalyptic number.

It is an amenable number.

10340400404297 is a deficient number, since it is larger than the sum of its proper divisors (1).

10340400404297 is an equidigital number, since it uses as much as digits as its factorization.

10340400404297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

Adding to 10340400404297 its reverse (79240400404301), we get a palindrome (89580800808598).

The spelling of 10340400404297 in words is "ten trillion, three hundred forty billion, four hundred million, four hundred four thousand, two hundred ninety-seven".