340240221011021 has 8 divisors (see below), whose sum is σ = 340307536392000. Its totient is φ = 340172907544800.

The previous prime is 340240221010973. The next prime is 340240221011029. The reversal of 340240221011021 is 120110122042043.

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 340240221011021 - 2³⁸ = 339965343104077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340240221011029) 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, 385560305 + ... + 386441753.

It is an arithmetic number, because the mean of its divisors is an integer number (42538442049000).

Almost surely, 2^{340240221011021} is an apocalyptic number.

It is an amenable number.

340240221011021 is a deficient number, since it is larger than the sum of its proper divisors (67315380979).

340240221011021 is an equidigital number, since it uses as much as digits as its factorization.

340240221011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957379.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 340240221011021 its reverse (120110122042043), we get a palindrome (460350343053064).

The spelling of 340240221011021 in words is "three hundred forty trillion, two hundred forty billion, two hundred twenty-one million, eleven thousand, twenty-one".