340034421241421 has 4 divisors (see below), whose sum is σ = 343212313028832. Its totient is φ = 336856529454012.

The previous prime is 340034421241297. The next prime is 340034421241517. The reversal of 340034421241421 is 124142124430043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340034421241421 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 (340034421241621) 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, 1588945893545 + ... + 1588945893758.

It is an arithmetic number, because the mean of its divisors is an integer number (85803078257208).

Almost surely, 2^{340034421241421} is an apocalyptic number.

It is an amenable number.

340034421241421 is a deficient number, since it is larger than the sum of its proper divisors (3177891787411).

340034421241421 is a wasteful number, since it uses less digits than its factorization.

340034421241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177891787410.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 340034421241421 its reverse (124142124430043), we get a palindrome (464176545671464).

The spelling of 340034421241421 in words is "three hundred forty trillion, thirty-four billion, four hundred twenty-one million, two hundred forty-one thousand, four hundred twenty-one".