340220020121 has 8 divisors (see below), whose sum is σ = 350154977760. Its totient is φ = 330424013152.

The previous prime is 340220020117. The next prime is 340220020141. The reversal of 340220020121 is 121020022043.

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 340220020121 - 2² = 340220020117 is a prime.

It is a super-3 number, since 3×340220020121³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340220020121.

It is not an unprimeable number, because it can be changed into a prime (340220020141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34732700 + ... + 34742493.

It is an arithmetic number, because the mean of its divisors is an integer number (43769372220).

Almost surely, 2^340220020121 is an apocalyptic number.

It is an amenable number.

340220020121 is a deficient number, since it is larger than the sum of its proper divisors (9934957639).

340220020121 is an equidigital number, since it uses as much as digits as its factorization.

340220020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69475335.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 340220020121 its reverse (121020022043), we get a palindrome (461240042164).

The spelling of 340220020121 in words is "three hundred forty billion, two hundred twenty million, twenty thousand, one hundred twenty-one".