340405150121 has 8 divisors (see below), whose sum is σ = 344206916424. Its totient is φ = 336611843200.

The previous prime is 340405150081. The next prime is 340405150153. The reversal of 340405150121 is 121051504043.

It can be written as a sum of positive squares in 4 ways, for example, as 139230474496 + 201174675625 = 373136^2 + 448525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340405150121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340405155121) 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 in 7 ways as a sum of consecutive naturals, for example, 2033900 + ... + 2194893.

It is an arithmetic number, because the mean of its divisors is an integer number (43025864553).

Almost surely, 2^340405150121 is an apocalyptic number.

It is an amenable number.

340405150121 is a deficient number, since it is larger than the sum of its proper divisors (3801766303).

340405150121 is a wasteful number, since it uses less digits than its factorization.

340405150121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229691.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 340405150121 its reverse (121051504043), we get a palindrome (461456654164).

The spelling of 340405150121 in words is "three hundred forty billion, four hundred five million, one hundred fifty thousand, one hundred twenty-one".