340014031431421 has 4 divisors (see below), whose sum is σ = 341337043227132. Its totient is φ = 338691019635712.

The previous prime is 340014031431377. The next prime is 340014031431449. The reversal of 340014031431421 is 124134130410043.

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 338221340732025 + 1792690699396 = 18390795^2 + 1338914^2 .

It is a cyclic number.

It is not a de Polignac number, because 340014031431421 - 2¹⁵ = 340014031398653 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 (340014031431721) 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, 661505897470 + ... + 661505897983.

It is an arithmetic number, because the mean of its divisors is an integer number (85334260806783).

Almost surely, 2^{340014031431421} is an apocalyptic number.

It is an amenable number.

340014031431421 is a deficient number, since it is larger than the sum of its proper divisors (1323011795711).

340014031431421 is a wasteful number, since it uses less digits than its factorization.

340014031431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323011795710.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 340014031431421 its reverse (124134130410043), we get a palindrome (464148161841464).

The spelling of 340014031431421 in words is "three hundred forty trillion, fourteen billion, thirty-one million, four hundred thirty-one thousand, four hundred twenty-one".