340225302121 has 4 divisors (see below), whose sum is σ = 344885922772. Its totient is φ = 335564681472.

The previous prime is 340225302113. The next prime is 340225302133. The reversal of 340225302121 is 121203522043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82426410000 + 257798892121 = 287100^2 + 507739^2 .

It is a cyclic number.

It is not a de Polignac number, because 340225302121 - 2³ = 340225302113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340225302161) 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 3 ways as a sum of consecutive naturals, for example, 2330310216 + ... + 2330310361.

It is an arithmetic number, because the mean of its divisors is an integer number (86221480693).

Almost surely, 2^340225302121 is an apocalyptic number.

It is an amenable number.

340225302121 is a deficient number, since it is larger than the sum of its proper divisors (4660620651).

340225302121 is an equidigital number, since it uses as much as digits as its factorization.

340225302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660620650.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 340225302121 its reverse (121203522043), we get a palindrome (461428824164).

The spelling of 340225302121 in words is "three hundred forty billion, two hundred twenty-five million, three hundred two thousand, one hundred twenty-one".