340433121389 has 2 divisors, whose sum is σ = 340433121390. Its totient is φ = 340433121388.

The previous prime is 340433121367. The next prime is 340433121419. The reversal of 340433121389 is 983121334043.

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., 262228998889 + 78204122500 = 512083^2 + 279650^2 .

It is a cyclic number.

It is not a de Polignac number, because 340433121389 - 2²⁴ = 340416344173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340433121349) 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, 170216560694 + 170216560695.

It is an arithmetic number, because the mean of its divisors is an integer number (170216560695).

Almost surely, 2^340433121389 is an apocalyptic number.

It is an amenable number.

340433121389 is a deficient number, since it is larger than the sum of its proper divisors (1).

340433121389 is an equidigital number, since it uses as much as digits as its factorization.

340433121389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 340433121389 in words is "three hundred forty billion, four hundred thirty-three million, one hundred twenty-one thousand, three hundred eighty-nine".