340023344410021 has 4 divisors (see below), whose sum is σ = 340136647760044. Its totient is φ = 339910041060000.

The previous prime is 340023344409971. The next prime is 340023344410051. The reversal of 340023344410021 is 120014443320043.

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 164808749381796 + 175214595028225 = 12837786^2 + 13236865^2 .

It is a cyclic number.

It is not a de Polignac number, because 340023344410021 - 2⁹ = 340023344409509 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 (340023344410051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56651670510 + ... + 56651676511.

It is an arithmetic number, because the mean of its divisors is an integer number (85034161940011).

Almost surely, 2^{340023344410021} is an apocalyptic number.

It is an amenable number.

340023344410021 is a deficient number, since it is larger than the sum of its proper divisors (113303350023).

340023344410021 is a wasteful number, since it uses less digits than its factorization.

340023344410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113303350022.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 340023344410021 its reverse (120014443320043), we get a palindrome (460037787730064).

The spelling of 340023344410021 in words is "three hundred forty trillion, twenty-three billion, three hundred forty-four million, four hundred ten thousand, twenty-one".