340343123012321 has 32 divisors (see below), whose sum is σ = 402487610246400. Its totient is φ = 285405215696640.

The previous prime is 340343123012317. The next prime is 340343123012411. The reversal of 340343123012321 is 123210321343043.

It is not a de Polignac number, because 340343123012321 - 2² = 340343123012317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340343123012821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30103385 + ... + 39835913.

It is an arithmetic number, because the mean of its divisors is an integer number (12577737820200).

Almost surely, 2^{340343123012321} is an apocalyptic number.

It is an amenable number.

340343123012321 is a deficient number, since it is larger than the sum of its proper divisors (62144487234079).

340343123012321 is a wasteful number, since it uses less digits than its factorization.

340343123012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734026 (or 9734000 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 340343123012321 its reverse (123210321343043), we get a palindrome (463553444355364).

The spelling of 340343123012321 in words is "three hundred forty trillion, three hundred forty-three billion, one hundred twenty-three million, twelve thousand, three hundred twenty-one".