340112102202121 has 8 divisors (see below), whose sum is σ = 349169899040424. Its totient is φ = 331090609159680.

The previous prime is 340112102202101. The next prime is 340112102202139. The reversal of 340112102202121 is 121202201211043.

It can be written as a sum of positive squares in 4 ways, for example, as 83549745708025 + 256562356494096 = 9140555^2 + 16017564^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 340112102202121 - 2⁹ = 340112102201609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340112102202092 and 340112102202101.

It is not an unprimeable number, because it can be changed into a prime (340112102202101) 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, 9075929980 + ... + 9075967453.

It is an arithmetic number, because the mean of its divisors is an integer number (43646237380053).

Almost surely, 2^{340112102202121} is an apocalyptic number.

It is an amenable number.

340112102202121 is a deficient number, since it is larger than the sum of its proper divisors (9057796838303).

340112102202121 is a wasteful number, since it uses less digits than its factorization.

340112102202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151897931.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 340112102202121 its reverse (121202201211043), we get a palindrome (461314303413164).

The spelling of 340112102202121 in words is "three hundred forty trillion, one hundred twelve billion, one hundred two million, two hundred two thousand, one hundred twenty-one".