340310201244021 has 6 divisors (see below), whose sum is σ = 491559179574710. Its totient is φ = 226873467496008.

The previous prime is 340310201244019. The next prime is 340310201244023. The reversal of 340310201244021 is 120442102013043.

340310201244021 is a `hidden beast` number, since 3 + 4 + 0 + 3 + 10 + 201 + 2 + 440 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (340310201244019) and next prime (340310201244023).

It can be written as a sum of positive squares in only one way, i.e., 178379129898225 + 161931071345796 = 13355865^2 + 12725214^2 .

It is not a de Polignac number, because 340310201244021 - 2¹ = 340310201244019 is a prime.

It is a super-4 number, since 4×340310201244021⁴ (a number of 59 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340310201244023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18906122291326 + ... + 18906122291343.

Almost surely, 2^{340310201244021} is an apocalyptic number.

It is an amenable number.

340310201244021 is a deficient number, since it is larger than the sum of its proper divisors (151248978330689).

340310201244021 is a wasteful number, since it uses less digits than its factorization.

340310201244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37812244582675 (or 37812244582672 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 340310201244021 its reverse (120442102013043), we get a palindrome (460752303257064).

The spelling of 340310201244021 in words is "three hundred forty trillion, three hundred ten billion, two hundred one million, two hundred forty-four thousand, twenty-one".