104134431397 has 2 divisors, whose sum is σ = 104134431398. Its totient is φ = 104134431396.

The previous prime is 104134431343. The next prime is 104134431403. The reversal of 104134431397 is 793134431401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92445794401 + 11688636996 = 304049^2 + 108114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104134431397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104134431097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52067215698 + 52067215699.

It is an arithmetic number, because the mean of its divisors is an integer number (52067215699).

Almost surely, 2^104134431397 is an apocalyptic number.

It is an amenable number.

104134431397 is a deficient number, since it is larger than the sum of its proper divisors (1).

104134431397 is an equidigital number, since it uses as much as digits as its factorization.

104134431397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

Adding to 104134431397 its reverse (793134431401), we get a palindrome (897268862798).

The spelling of 104134431397 in words is "one hundred four billion, one hundred thirty-four million, four hundred thirty-one thousand, three hundred ninety-seven".